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<channel>
    <title>Mojang Studios Jira</title>
    <link>https://bugs.mojang.com</link>
    <description>This file is an XML representation of an issue</description>
    <language>en</language>    <build-info>
        <version>9.12.2</version>
        <build-number>9120002</build-number>
        <build-date>10-01-2024</build-date>
    </build-info>


<item>
            <title>[MC-697] Default singleplayer player data is always used for players opening world</title>
                <link>https://bugs.mojang.com/browse/MC-697</link>
                <project id="10400" key="MC">Minecraft: Java Edition</project>
                    <description>&lt;h3&gt;&lt;a name=&quot;Thebug&quot;&gt;&lt;/a&gt;The bug&lt;/h3&gt;
&lt;p&gt;For singleplayer worlds the player data is written to the &lt;tt&gt;level.dat&lt;/tt&gt; file as well (called &quot;default player data&quot; in the following) and always used when someone opens the world. This creates the following two unwanted situations.&lt;/p&gt;

&lt;h4&gt;&lt;a name=&quot;Cannotstartwithemptyinventoryinaworldofsomeoneelse&quot;&gt;&lt;/a&gt;Cannot start with empty inventory in a world of someone else&lt;/h4&gt;
&lt;p&gt;Because the default player data is always used you cannot play in the world of someone else with new player data but instead start where the player who last played left and have the same items.&lt;/p&gt;

&lt;h4&gt;&lt;a name=&quot;DefaultplayerdataisusedevenifplayerdataexistsafterplayinginLAN&quot;&gt;&lt;/a&gt;Default player data is used even if player data exists after playing in LAN&lt;/h4&gt;
&lt;p&gt;When you played in LAN before and an entry in the &lt;tt&gt;playerdata&lt;/tt&gt; folder exists for a player the default player data is used anyways.&lt;br/&gt;
Imagine the following: Player 1 hosted the world and player 2 joined. After that player 2 opens the world, even though a player data entry exists he gets player 1&apos;s player data (=default player data) which even overwrites player 2&apos;s player data entry when he leaves the world.&lt;/p&gt;

&lt;h4&gt;&lt;a name=&quot;Outdateddefaultplayerdataisusedafterloadingworldonadedicatedserver&quot;&gt;&lt;/a&gt;Outdated default player data is used after loading world on a dedicated server&lt;/h4&gt;
&lt;p&gt;When a singleplayer world is loaded by a dedicated server and the default player data player joins, their &lt;tt&gt;playerdata&lt;/tt&gt; entry is updated, but their default player data is not. Therefore when they load the world in singleplayer again, they have the old outdated player data.&lt;/p&gt;

&lt;h3&gt;&lt;a name=&quot;Possiblesolution&quot;&gt;&lt;/a&gt;Possible solution&lt;/h3&gt;
&lt;p&gt;See this &lt;a href=&quot;https://www.reddit.com/r/Mojira/comments/5ls558/solution_discussion_for_default_singleplayer/&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;reddit post&lt;/a&gt; for a discussion.&lt;/p&gt;

&lt;p&gt;Have the game perform these steps when loading a world:&lt;/p&gt;
&lt;ol&gt;
	&lt;li&gt;If the default player data exists and for the same UUID a &lt;tt&gt;playerdata&lt;/tt&gt; entry exists, overwrite the default player data with that. This is needed for the case where a singleplayer world was loaded by a dedicated server and therefore the default player data became outdated.&lt;br/&gt;
Then continue with the following steps:&lt;/li&gt;
	&lt;li&gt;If the default player data exists, but the UUID does not match the UUID of the current player:&lt;br/&gt;
Possibly offer a checkbox to determine whether the default player data should be overwritten by the current player.&lt;br/&gt;
Provide these options:
	&lt;ul class=&quot;alternate&quot; type=&quot;square&quot;&gt;
		&lt;li&gt;Offer to continue where that player last left&lt;/li&gt;
		&lt;li&gt;Offer to use own player data (in case &lt;tt&gt;playerdata&lt;/tt&gt; entry exists) or otherwise with empty inventory at world spawn&lt;/li&gt;
	&lt;/ul&gt;
	&lt;/li&gt;
	&lt;li&gt;Otherwise: If the default player data exists and the UUID matches the UUID of the current player, use that data&lt;/li&gt;
	&lt;li&gt;Otherwise: If no default player data exists use the matching &lt;tt&gt;playerdata&lt;/tt&gt; entry or, in case that does not exist, start with an empty inventory at world spawn&lt;/li&gt;
&lt;/ol&gt;


&lt;h3&gt;&lt;a name=&quot;Workaround&quot;&gt;&lt;/a&gt;Workaround&lt;/h3&gt;
&lt;p&gt;Keep in mind that this is a bug tracker and not a discussion forum or a help desk. For questions, ask for example on reddit, the Minecraft Forum, or on other platforms.&lt;/p&gt;

&lt;p&gt;&lt;img class=&quot;emoticon&quot; src=&quot;https://bugs.mojang.com/images/icons/emoticons/warning.png&quot; height=&quot;16&quot; width=&quot;16&quot; align=&quot;absmiddle&quot; alt=&quot;&quot; border=&quot;0&quot;/&gt; Create a backup of your world before trying the following workaround. Otherwise you might loose data or your world can become corrupted.&lt;/p&gt;

&lt;p&gt;The following steps require an NBT editor. Make sure it is up to date and supports changes to NBT structure introduced in the latest versions. You can use for example &lt;a href=&quot;https://www.minecraftforum.net/forums/mapping-and-modding-java-edition/minecraft-tools/1262665-nbtexplorer-nbt-editor-for-windows-and-mac&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;NBTExplorer&lt;/a&gt; version 2.8.0(&amp;#43;).&lt;/p&gt;

&lt;ol&gt;
	&lt;li&gt;Open the &lt;tt&gt;level.dat&lt;/tt&gt; file of the world with an NBT editor&lt;/li&gt;
	&lt;li&gt;Delete the &lt;tt&gt;Data&lt;/tt&gt; &amp;gt; &lt;tt&gt;Player&lt;/tt&gt; entry&lt;/li&gt;
	&lt;li&gt;Save the file&lt;/li&gt;
&lt;/ol&gt;
</description>
                <environment></environment>
        <key id="11975">MC-697</key>
            <summary>Default singleplayer player data is always used for players opening world</summary>
                <type id="1" iconUrl="https://bugs.mojang.com/secure/viewavatar?size=xsmall&amp;avatarId=18903&amp;avatarType=issuetype">Bug</type>
                                    <status id="4" iconUrl="https://bugs.mojang.com/images/icons/statuses/reopened.png" description="This issue was once resolved, but the resolution was deemed incorrect. From here issues are either marked assigned or resolved.">Reopened</status>
                    <statusCategory id="2" key="new" colorName="default"/>
                                    <resolution id="-1">Unresolved</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="Mask3D_WOLF">Mask3D_WOLF</reporter>
                        <labels>
                            <label>duplication</label>
                            <label>playerdata</label>
                    </labels>
                <created>Fri, 26 Oct 2012 08:26:16 +0200</created>
                <updated>Sat, 27 Jan 2024 12:53:14 +0100</updated>
                                            <version>Minecraft 1.4.2</version>
                    <version>Minecraft 1.4.6</version>
                    <version>Minecraft 1.7.4</version>
                    <version>Minecraft 14w05b</version>
                    <version>Minecraft 14w06b</version>
                    <version>Minecraft 14w07a</version>
                    <version>Minecraft 14w08a</version>
                    <version>Minecraft 1.7.10</version>
                    <version>Minecraft 14w32d</version>
                    <version>Minecraft 1.8.1-pre3</version>
                    <version>Minecraft 1.9.4</version>
                    <version>Minecraft 1.10</version>
                    <version>Minecraft 1.10.1</version>
                    <version>Minecraft 1.10.2</version>
                    <version>Minecraft 1.11.2</version>
                    <version>Minecraft 1.12.1</version>
                    <version>Minecraft 1.12.2</version>
                    <version>Minecraft 1.13-pre6</version>
                    <version>Minecraft 18w30b</version>
                    <version>Minecraft 1.13.2</version>
                    <version>Minecraft 1.14 Pre-Release 2</version>
                    <version>Minecraft 1.14 Pre-Release 3</version>
                    <version>Minecraft 1.14 Pre-Release 4</version>
                    <version>Minecraft 1.14 Pre-Release 5</version>
                    <version>1.14.4</version>
                    <version>1.15.2</version>
                    <version>20w13b</version>
                    <version>1.16 Release Candidate 1</version>
                    <version>1.16</version>
                    <version>1.16.1</version>
                    <version>20w27a</version>
                    <version>20w28a</version>
                    <version>1.16.2</version>
                    <version>1.16.4</version>
                    <version>1.16.5</version>
                    <version>21w06a</version>
                    <version>21w07a</version>
                    <version>21w08b</version>
                    <version>21w11a</version>
                    <version>21w14a</version>
                    <version>1.17 Release Candidate 2</version>
                    <version>1.17</version>
                    <version>1.19.3</version>
                    <version>23w03a</version>
                    <version>23w04a</version>
                    <version>23w05a</version>
                    <version>23w06a</version>
                    <version>1.20.4</version>
                                                                        <votes>63</votes>
                                    <watches>36</watches>
                                                                            <comments>
                            <comment id="1237107" author="JIRAUSER734481" created="Sat, 11 Feb 2023 16:29:54 +0100"  >&lt;p&gt;Can confirm in 23w06a&lt;/p&gt;</comment>
                            <comment id="1234891" author="JIRAUSER734481" created="Wed, 1 Feb 2023 17:04:26 +0100"  >&lt;p&gt;Can confirm in 23w05a&lt;/p&gt;</comment>
                            <comment id="1233489" author="JIRAUSER734481" created="Wed, 25 Jan 2023 08:20:27 +0100"  >&lt;p&gt;Can confirm in 23w04a&lt;/p&gt;</comment>
                            <comment id="1221698" author="JIRAUSER734481" created="Wed, 18 Jan 2023 15:24:28 +0100"  >&lt;p&gt;Can confirm in 23w03a&lt;/p&gt;</comment>
                            <comment id="1221069" author="JIRAUSER734481" created="Sat, 14 Jan 2023 15:13:18 +0100"  >&lt;p&gt;Can confirm in 1.19.3&lt;/p&gt;</comment>
                            <comment id="1007435" author="JIRAUSER620116" created="Mon, 7 Jun 2021 20:31:47 +0200"  >&lt;p&gt;I can confirm for 1.17 release candidate 2, Assuming this is what I experienced. I logged on to a world on my main account, logged off, and back on with my second account using the same PC. We shared inventories. I then hosted a LAN world on my main and joined the LAN world on my alt, the alt had the same inventory as it did before, therefore, I was able to dupe items an infinite amount of times with this as the alt account&apos;s inventory changed to my main&apos;s every time I logged on to it in singleplayer. when you log onto a world in single player the inventory becomes the same as the last time the world was loaded, regardless of which account. This allows for duplicating an entire inventory as many times as you want as long as you have 2 accounts open on the same device. Although if your looking to dupe items and your using LAN to do so, its easier to just turn on cheats with LAN and go into creative mode.&#160;&lt;/p&gt;</comment>
                            <comment id="939027" author="flexico" created="Mon, 8 Mar 2021 03:02:49 +0100"  >&lt;p&gt;A while back somebody said they were self-assigning this, and I saw their name under &quot;Assignee&quot; but now it&apos;s back to &quot;Unassigned.&quot; What gives?&lt;/p&gt;</comment>
                            <comment id="938969" author="jack_mckalling" created="Sun, 7 Mar 2021 23:52:57 +0100"  >&lt;p&gt;Yes, don&apos;t worry.&lt;/p&gt;</comment>
                            <comment id="938953" author="flexico" created="Sun, 7 Mar 2021 23:30:29 +0100"  >&lt;p&gt;I&apos;ve gotten many emails about new comments here, but when I come to the page they&apos;re gone &amp;#8211; is a mod deleting them?&lt;/p&gt;</comment>
                            <comment id="889703" author="JIRAUSER592614" created="Mon, 4 Jan 2021 19:09:18 +0100"  >&lt;p&gt;Confirmed in 1.16.4.&lt;/p&gt;

&lt;p&gt;This bug was reported on the first day the issue tracker was open and still hasn&apos;t been fixed more than 8 years later.&lt;/p&gt;</comment>
                            <comment id="757707" author="JIRAUSER508442" created="Mon, 6 Jul 2020 19:55:39 +0200"  >&lt;p&gt;Confirmed in 20w27a&lt;/p&gt;</comment>
                            <comment id="494611" author="jack_mckalling" created="Thu, 18 Oct 2018 23:37:46 +0200"  >&lt;p&gt;I experienced this too, when I opened my world to lan, and later opened it under their account. From the description I understand this really is a bug, I imagined it might just be intended how the world is saved between single/multiplayer. I hope this gets fixed somehow sometime!&lt;/p&gt;</comment>
                            <comment id="489475" author="marcono1234" created="Mon, 17 Sep 2018 23:41:50 +0200"  >&lt;p&gt;@&lt;a href=&quot;https://bugs.mojang.com/secure/ViewProfile.jspa?name=SkippyMitch&quot; class=&quot;user-hover&quot; rel=&quot;SkippyMitch&quot;&gt;SkippyMitch&lt;/a&gt;, I added a workaround to the description. This should hopefully work.&lt;/p&gt;</comment>
                            <comment id="489305" author="skippymitch" created="Sun, 16 Sep 2018 23:42:35 +0200"  >&lt;p&gt;I will try again, but someone said that when launching the world the default (single player) host data will overwrite the UUID playerdata file.&lt;br/&gt;
If this is true&#160;I need to find the default host data file(s) and delete or overwrite before launching the world.&lt;/p&gt;</comment>
                            <comment id="489302" author="farogaming" created="Sun, 16 Sep 2018 23:19:55 +0200"  >&lt;p&gt;From what I can see, it should work. Try it with two non-hosting inventories (A hosts LAN world, B and C join, you swap B and C).&lt;/p&gt;</comment>
                            <comment id="489301" author="skippymitch" created="Sun, 16 Sep 2018 23:02:56 +0200"  >&lt;p&gt;Fabian, I have tried swapping the filenames (UUIDs?) of the two .DAT files within the /playerdata folder&#160; -&#160; this did not work, should it have? what file would i need to delete?&lt;/p&gt;

&lt;p&gt;&#160;&lt;/p&gt;</comment>
                            <comment id="489299" author="farogaming" created="Sun, 16 Sep 2018 22:58:32 +0200"  >&lt;p&gt;Yes, just delete the inventory. Or, if you want to preserve the players&apos; inventories, you have to move the inventories into the folders for the correct UUIDs.&lt;/p&gt;</comment>
                            <comment id="489295" author="skippymitch" created="Sun, 16 Sep 2018 22:37:56 +0200"  >&lt;p&gt;Is there even a workaround for this? Like if I find the default player data and remove it before loading the world?&lt;/p&gt;

&lt;p&gt;Trying to swap host machines for a LAN hosted world. 1.12.2&lt;/p&gt;</comment>
                            <comment id="430288" author="thetamedwolf" created="Sun, 21 Jan 2018 06:58:05 +0100"  >&lt;p&gt;Is there a ticket for this issue for Bedrock Edition? I can;t find it when I search but I&apos;m having this issue too but for MCPE. It makes it difficult for the host to transfer to another host. (like if your device can&apos;t handle it anymore or something) It opens the world as you and not the other player (who already has playerdata for that world).&lt;/p&gt;</comment>
                            <comment id="427983" author="kaevaja" created="Tue, 9 Jan 2018 23:38:53 +0100"  >&lt;p&gt;Still an issue in 1.12.2 LAN. Affected ender chest, location, armour, inventory. When a second player opens tge world in single player mode they are given the first player&apos;s stuff. Also overwrote player 2 advancements.&lt;/p&gt;</comment>
                            <comment id="351883" author="miwob" created="Mon, 2 Jan 2017 16:24:30 +0100"  >&lt;p&gt;&lt;a href=&quot;https://bugs.mojang.com/secure/ViewProfile.jspa?name=marcono1234&quot; class=&quot;user-hover&quot; rel=&quot;marcono1234&quot;&gt;marcono1234&lt;/a&gt;: aye, sounds better to me.&lt;/p&gt;</comment>
                            <comment id="351882" author="marcono1234" created="Mon, 2 Jan 2017 16:18:35 +0100"  >&lt;p&gt;Would the title &quot;Opening singleplayer world uses default player data even if playerdata for user exists after playing in LAN before&quot; describe this bug better? That is based on &lt;a href=&quot;https://bugs.mojang.com/browse/MC-44064&quot; title=&quot;&amp;quot;Open To Lan&amp;quot; game will overwrite player data&quot; class=&quot;issue-link&quot; data-issue-key=&quot;MC-44064&quot;&gt;&lt;del&gt;MC-44064&lt;/del&gt;&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="317442" author="farogaming" created="Sat, 25 Jun 2016 22:59:27 +0200"  >&lt;p&gt;I don&apos;t think so. As far as I understand it, if you play in a SP world, the last saved inventory or the standard one or whatever gets copied to something linked to your UUID inside the saves folder. If that wouldn&apos;t happen, but it would just use the standard one while playing and also for the host in a LAN world, the inventories for UUIDs that get used on the LAN server would work normally and don&apos;t interfere with the normal SP playing. When it gets opened in LAN again later, there are the per-UUID inventories again ready to use.&lt;/p&gt;</comment>
                            <comment id="317433" author="husky2490" created="Sat, 25 Jun 2016 22:32:40 +0200"  >&lt;div class=&quot;panel&quot; style=&quot;background-color: #FFFFCE;border-width: 1px;&quot;&gt;&lt;div class=&quot;panelContent&quot; style=&quot;background-color: #FFFFCE;&quot;&gt;
&lt;p&gt;&lt;img class=&quot;emoticon&quot; src=&quot;https://bugs.mojang.com/images/icons/emoticons/information.png&quot; height=&quot;16&quot; width=&quot;16&quot; align=&quot;absmiddle&quot; alt=&quot;&quot; border=&quot;0&quot;/&gt; The best workaround/prevention tip I can come up with right now to this issue is to &lt;b&gt;backup your saves&lt;/b&gt;.&lt;/p&gt;
&lt;/div&gt;&lt;/div&gt;

&lt;p&gt;For all we know, the fix could come whenever Jeb, Dinnerbone, Grumm, or someone else decides to change the save format, which might be a while &lt;img class=&quot;emoticon&quot; src=&quot;https://bugs.mojang.com/images/icons/emoticons/sad.png&quot; height=&quot;16&quot; width=&quot;16&quot; align=&quot;absmiddle&quot; alt=&quot;&quot; border=&quot;0&quot;/&gt;&lt;/p&gt;</comment>
                            <comment id="316377" author="farogaming" created="Wed, 22 Jun 2016 23:25:02 +0200"  >&lt;p&gt;Confirmed for 1.10.1.&lt;/p&gt;</comment>
                            <comment id="312244" author="farogaming" created="Thu, 9 Jun 2016 20:43:24 +0200"  >&lt;p&gt;Confirmed for 1.10.&lt;br/&gt;
The fact that it also happens with the inventory is mentioned in the comments and in most of the duplicates, but not in the description here. Might need a general overhaul, because it&apos;s hard to understand.&lt;/p&gt;</comment>
                            <comment id="204993" author="galaxy_2alex" created="Fri, 24 Oct 2014 21:26:11 +0200"  >&lt;p&gt;Reopened, thanks.&lt;/p&gt;</comment>
                            <comment id="204990" author="jonathan.hynes" created="Fri, 24 Oct 2014 21:20:48 +0200"  >&lt;p&gt;Yup it&apos;s there in 1.8.1-pre3&lt;/p&gt;</comment>
                            <comment id="202129" author="tubelugs" created="Wed, 1 Oct 2014 18:26:13 +0200"  >&lt;p&gt;There are at least a half dozen bug reports on this issue, going back at least to v1.4.6. All of them have been marked &quot;Duplicate&quot; except &lt;a href=&quot;https://bugs.mojang.com/browse/MC-5405&quot; title=&quot;Duplication of Items/xp in game&quot; class=&quot;issue-link&quot; data-issue-key=&quot;MC-5405&quot;&gt;&lt;del&gt;MC-5405&lt;/del&gt;&lt;/a&gt;, which has been marked &quot;Invalid&quot;. The net result is that the moderators keep saying this is a non-issue, when in fact this continues to be a debilitating issue years after it was initially reported. The bug prohibits multiple players from playing on a single computer. It is open and it needs to be fixed.&lt;/p&gt;</comment>
                            <comment id="186619" author="jonathan.hynes" created="Fri, 8 Aug 2014 23:58:38 +0200"  >&lt;p&gt;Affects 1.7.10 &amp;amp; 14w32d.&lt;/p&gt;

&lt;p&gt;Also, could anyone with the ability change the title of this ticket to reflect the broader nature of the bug? You don&apos;t need Ender Chests at all to see this.&lt;/p&gt;

&lt;p&gt;I&apos;m kind of surprised this ticket hasn&apos;t gotten more attention. It&apos;s essentially game-breaking for groups of 2 or more who only own 1 computer, but still want to collaborate.&lt;/p&gt;</comment>
                            <comment id="179637" author="ezekielelin" created="Fri, 25 Jul 2014 04:01:39 +0200"  >&lt;p&gt;Is this still a concern in the latest Minecraft version &lt;b&gt;14w30c&lt;/b&gt;? If so, please update the affected versions in order to best aid Mojang ensuring bugs are still valid in the latest releases/pre-releases.&lt;/p&gt;</comment>
                            <comment id="142829" author="ezekielelin" created="Mon, 24 Feb 2014 15:11:01 +0100"  >&lt;p&gt;Ok&lt;/p&gt;</comment>
                            <comment id="142433" author="lribeiro97" created="Sat, 22 Feb 2014 13:16:55 +0100"  >&lt;p&gt;I don&apos;t know if the Reporter of the bug will update the post, but I tested it and THIS IS STILL A PROBLEM IN THE LATEST SNAPSHOT.&lt;/p&gt;</comment>
                            <comment id="129112" author="lribeiro97" created="Sun, 5 Jan 2014 18:29:56 +0100"  >&lt;p&gt;Please send this to Dinnerbone so he fixes it.&lt;/p&gt;

&lt;p&gt;Yes it is a problem in 1.7.4 and it ruined my experince with my sister. I got really sad that it hapenned, does anyone knows how she can access her ender chest again?&lt;/p&gt;</comment>
                            <comment id="128741" author="jdagostino1@gmail.com" created="Thu, 2 Jan 2014 22:36:31 +0100"  >&lt;p&gt;Can confirm that this is an issue in 1.6.4 and 1.7.4 both.&lt;/p&gt;</comment>
                            <comment id="106327" author="cubethethird" created="Thu, 26 Sep 2013 04:17:35 +0200"  >&lt;p&gt;Is this still a concern in the &lt;em&gt;current Minecraft version&lt;/em&gt; &lt;b&gt;1.6.4&lt;/b&gt; / Launcher version &lt;b&gt;1.2.5&lt;/b&gt; ? If so, please &lt;em&gt;update the affected versions&lt;/em&gt; in order to best aid Mojang ensuring bugs are still valid in the latest releases/pre-releases.&lt;/p&gt;</comment>
                            <comment id="82269" author="jespertheend" created="Thu, 4 Jul 2013 10:54:15 +0200"  >&lt;p&gt;hmm... if the player that logged in was called &apos;player&apos; then it would make a bit sense, then you would use all the properties from the level.dat but in your case it&apos;s just weird&lt;/p&gt;</comment>
                            <comment id="81793" author="phycist1616" created="Wed, 3 Jul 2013 21:51:39 +0200"  >&lt;p&gt;@Jesper Unlike your issue, the Minecraft servers were fine.  The thing that caused this was player 2 logging on to player 1&apos;s machine and loading this world, which copied player 1&apos;s .dat file (possibly from the level.dat instead of &quot;player1&quot;.dat or &quot;player2&quot;.dat as you mentioned) and replaced player 2&apos;s permanently.  Until opened to LAN, there is no one to see what another player is called, so I don&apos;t have the answer to your question.&lt;/p&gt;</comment>
                            <comment id="81364" author="jespertheend" created="Wed, 3 Jul 2013 09:59:33 +0200"  >&lt;p&gt;so... the player that logged in wasn&apos;t just called &apos;player&apos; ?&lt;/p&gt;</comment>
                            <comment id="80850" author="phycist1616" created="Tue, 2 Jul 2013 21:10:06 +0200"  >&lt;p&gt;Yes, this is still a concern with LAN play.&lt;/p&gt;

&lt;p&gt;(edit:  And it concerns all facets of a character to include inventory and enderchests, despite the title)&lt;/p&gt;

&lt;p&gt;When a player with a different username logs into Minecraft from my computer and pulls up the world we play together:  her inventory, location, enderchest, etc. are all replaced with the original &apos;main character&apos; values, which then overwrite her .dat file.&lt;/p&gt;

&lt;p&gt;I thought that was strange, because she already had a .dat file, but the game rewrote her to be me.&lt;/p&gt;

&lt;p&gt;(We lost a ton of enchanted armor she had just made, and duped several silk touch items I had this way.  To top it all off, because I was mapping, she ended up displaced about 5km.)&lt;/p&gt;

&lt;p&gt;edit:  This was around 13w25a  (Sorry to not have exact; it was after zombie AI changes and before 1.6 pre-release, but I haven&apos;t seen anything regarding SSP/LAN save structure in patch notes, so I bet it&apos;s still in live).&lt;/p&gt;</comment>
                            <comment id="57630" author="bljat" created="Thu, 28 Mar 2013 16:15:57 +0100"  >&lt;p&gt;Is this still a concern in the current Minecraft version? If so, please update the affected versions in order to best aid Mojang ensuring bugs are still valid in the latest releases/pre-releases.&lt;/p&gt;</comment>
                            <comment id="45939" author="jespertheend" created="Fri, 15 Feb 2013 20:49:13 +0100"  >&lt;p&gt;I&apos;ve seen this once, but that was because the minecraft servers were down and player two was called &apos;player&apos; that&apos;s why he will get the same NBT data from the level.dat instead of it&apos;s own player.dat&lt;/p&gt;</comment>
                            <comment id="23247" author="randompotato13" created="Mon, 19 Nov 2012 10:47:26 +0100"  >&lt;p&gt;Confirmed,only in LAN not multiplayer, they should make separate inventories for lan worlds and separate EnderChests.  &lt;/p&gt;</comment>
                            <comment id="13965" author="ezekielelin" created="Fri, 26 Oct 2012 15:34:21 +0200"  >&lt;p&gt;This is somewhat serious, however I can not confirm because I don&apos;t have access to a copy of Minecraft at the moment. It makes sense, however.&lt;/p&gt;</comment>
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