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    <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>
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<item>
            <title>[MC-5009] &quot;Persistent&quot; Mobs Still Despawn on Peaceful Switch, Take Loot With Them</title>
                <link>https://bugs.mojang.com/browse/MC-5009</link>
                <project id="10400" key="MC">Minecraft: Java Edition</project>
                    <description>&lt;p&gt;Even though their &quot;no despawning&quot; boolean is set true upon picking up item drops (e.g. dead player&apos;s inventory), a zombie, zombie pigman, skeleton, or wither skeleton will still despawn if the game is set to peaceful.&lt;/p&gt;

&lt;p&gt;The problem is less the despawn itself and more the fact they take their loot with them.&lt;/p&gt;</description>
                <environment></environment>
        <key id="17567">MC-5009</key>
            <summary>&quot;Persistent&quot; Mobs Still Despawn on Peaceful Switch, Take Loot With Them</summary>
                <type id="1" iconUrl="https://bugs.mojang.com/secure/viewavatar?size=xsmall&amp;avatarId=18903&amp;avatarType=issuetype">Bug</type>
                                    <status id="5" iconUrl="https://bugs.mojang.com/images/icons/statuses/resolved.png" description="A resolution has been taken, and it is awaiting verification by reporter. From here issues are either reopened, or are closed.">Resolved</status>
                    <statusCategory id="3" key="done" colorName="success"/>
                                    <resolution id="6">Works As Intended</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="starshadesjack">JL</reporter>
                        <labels>
                            <label>despawning</label>
                            <label>mob</label>
                            <label>name_tag</label>
                            <label>peaceful</label>
                    </labels>
                <created>Thu, 20 Dec 2012 00:29:12 +0100</created>
                <updated>Sun, 16 Jan 2022 21:34:59 +0100</updated>
                            <resolved>Fri, 21 Dec 2012 03:58:28 +0100</resolved>
                                    <version>Minecraft 1.4.5</version>
                                                                        <votes>0</votes>
                                    <watches>6</watches>
                                                                            <comments>
                            <comment id="246194" author="venari" created="Sat, 29 Aug 2015 21:12:19 +0200"  >&lt;p&gt;On my SMP server running 1.8.8 vanilla, 7 of every 9 (so far) named slimes have despawned.&lt;/p&gt;</comment>
                            <comment id="217103" author="thetamedwolf" created="Mon, 26 Jan 2015 18:28:00 +0100"  >&lt;p&gt;Ok thank ya! So there is an issue with the nametags ok. I am using 1.8.2pre4 and it was a simple spelling error on my part. I spelled persistance &amp;lt;--- with an &quot;A&quot; instead of an &quot;E&quot;. it is supposed to be PersistenceRequired:1 not PersistanceRequired:1. I changed it and it seems to be working now.&lt;/p&gt;</comment>
                            <comment id="217043" author="kumasasa" created="Mon, 26 Jan 2015 07:53:39 +0100"  >&lt;p&gt;@&lt;a href=&quot;https://bugs.mojang.com/secure/ViewProfile.jspa?name=TheTamedWolf&quot; class=&quot;user-hover&quot; rel=&quot;TheTamedWolf&quot;&gt;TheTamedWolf&lt;/a&gt;: That&apos;s &lt;a href=&quot;https://bugs.mojang.com/browse/MC-27535&quot; title=&quot;Mobs can sometimes still despawn, even if named with a name tag&quot; class=&quot;issue-link&quot; data-issue-key=&quot;MC-27535&quot;&gt;&lt;del&gt;MC-27535&lt;/del&gt;&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="217035" author="thetamedwolf" created="Mon, 26 Jan 2015 05:10:38 +0100"  >&lt;p&gt;Oops I found an open ticket with this issue that you addressed, sorry about that lol.&lt;/p&gt;

&lt;p&gt;I am in creative mode when it happens and the other person was in survival so that isn&apos;t the issue I guess must be something else huh.&lt;/p&gt;

&lt;p&gt;EDIT: I never tried nametaging but for my map that would be ridiculous lol so it never really occurred to me. The persistance tag doesn&apos;t seem to work for me though. BUT I have noticed that if you spawn in a mob and it is successful, it will eventually DESPAWN because of poor coding. Like if you type an error, like if you forget the s after Damage:3&lt;span class=&quot;error&quot;&gt;&amp;#91;s&amp;#93;&lt;/span&gt;. The mob will SPAWN successfully and the command block agrees that it is so. However the mob has a genetic defect of sorts and dies soon after at an unpredictable time.&lt;/p&gt;</comment>
                            <comment id="217033" author="thetamedwolf" created="Mon, 26 Jan 2015 04:59:04 +0100"  >&lt;p&gt;@&lt;span class=&quot;error&quot;&gt;&amp;#91;Mod&amp;#93;&lt;/span&gt; Kumasasa&lt;/p&gt;

&lt;p&gt;Hi, I know that this was for a much earlier version but I seem to be having the same problem and I am in the recent snapshot 1.8.2 pre4. I am having this same problem except I am on Normal Difficulty. I thought PersistanceRequired:1 means that they will never despawn... ever? &lt;/p&gt;

&lt;p&gt;If it is working as intended, how do I make my custom mobs not despawn I need them to stay for an experiment? They all are given names when summoned. So I originally thought that that made them permanent but they still despawn. If you could help me out I&apos;d be most grateful.&lt;/p&gt;</comment>
                            <comment id="29818" author="kumasasa" created="Fri, 21 Dec 2012 03:58:28 +0100"  >&lt;p&gt;There is no bug. Everything is working as intended.&lt;br/&gt;
Since you are cheating anyway, why don&apos;t you switch to creative mode instead to peaceful, that will preserve the loot.&lt;br/&gt;
If you want to have the game mechanics changed, please use the &lt;a href=&quot;http://www.minecraftforum.net/forum/1-suggestions/&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;MineCraft Forums: Suggestions&lt;/a&gt;.&lt;/p&gt;</comment>
                            <comment id="29562" author="banana478" created="Thu, 20 Dec 2012 02:31:47 +0100"  >&lt;p&gt;I also think this is intended. Peaceful just gets rid of all hostile mobs.&lt;/p&gt;</comment>
                            <comment id="29550" author="starshadesjack" created="Thu, 20 Dec 2012 00:46:41 +0100"  >&lt;p&gt;The problem isn&apos;t necessarily that they de-spawn, but that they take their pilfered loot with them. It&apos;s not unlikely for a person to die and then swap to peaceful to make getting their stuff back easier. I don&apos;t personally, but it&apos;s not something that never happens.&lt;/p&gt;

&lt;p&gt;I have amended the report to reflect the issue more accurately.&lt;/p&gt;</comment>
                            <comment id="29549" author="firehunterx" created="Thu, 20 Dec 2012 00:40:58 +0100"  >&lt;p&gt;Because they&apos;re supposed to!&lt;/p&gt;</comment>
                    </comments>
                <issuelinks>
                            <issuelinktype id="10102">
                    <name>Duplicate</name>
                                                                <inwardlinks description="is duplicated by">
                                        <issuelink>
            <issuekey id="25331">MC-11219</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="30517">MC-14911</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="92843">MC-65367</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="170660">MC-117383</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="377385">MC-201770</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="407369">MC-212648</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="494069">MC-248154</issuekey>
        </issuelink>
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