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        <version>9.12.2</version>
        <build-number>9120002</build-number>
        <build-date>10-01-2024</build-date>
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<item>
            <title>[MCPE-16343] Intense worldwide lag and crashes on worlds with a lot of player data</title>
                <link>https://bugs.mojang.com/browse/MCPE-16343</link>
                <project id="10200" key="MCPE">Minecraft (Bedrock codebase)</project>
                    <description>&lt;p&gt;I have a world with a lot of multiplayer player data (eg the data that saves a player&apos;s inventory, last coordinates, name, etc). All the data is slowing down the game only in this world and makes it freeze when players join and drop to around 5-10 fps when a player is on my world. I&apos;ve had maybe ~300-400 people join this world and the data is slowing it down somehow. Even opening the world can take ~30 seconds or even just crash the game. This has been an issue since 0.11 and still is an issue in 0.15.2. The world is 33.3MB superflat. I&apos;m not sure why this happens, it&apos;s like mcpe is reading player data when it doesn&apos;t need to do it...&lt;/p&gt;</description>
            <key id="146984">MCPE-16343</key>
            <summary>Intense worldwide lag and crashes on worlds with a lot of player data</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="5">Cannot Reproduce</resolution>
                                            <reporter username="Comments2010">David James Diehl</reporter>
                        <labels>
                    </labels>
                <created>Mon, 25 Jul 2016 21:34:40 +0200</created>
                <updated>Wed, 3 Jan 2018 15:47:45 +0100</updated>
                            <resolved>Wed, 3 Jan 2018 15:46:21 +0100</resolved>
                                    <version>0.15.2</version>
                                                                        <votes>0</votes>
                                    <watches>4</watches>
                                                                            <comments>
                            <comment id="426501" author="mega_spud" created="Wed, 3 Jan 2018 15:46:21 +0100"  >&lt;p&gt;This ticket has been resolved as &apos;Cannot Reproduce&apos; as it has no response was received recently.&lt;/p&gt;</comment>
                            <comment id="344027" author="aman4700" created="Fri, 18 Nov 2016 05:34:09 +0100"  >&lt;p&gt;This is a bulk resolve of issues that haven&apos;t been updated to 0.16.0+ yet. Please comment below (To open the ticket) and update your affected versions. If you cannot reproduce the bug, please write in the comments so we can resolve it as &quot;Cannot Reproduce&quot;. Thank You!&lt;/p&gt;</comment>
                            <comment id="331026" author="comments2010" created="Sun, 25 Sep 2016 18:52:07 +0200"  >&lt;p&gt;Yes this still happens with 0.15.9. I have some updates for my report now, I am now using an iPhone SE (iPhone 8,1) running iOS 10.0.2. Same world, same problem. I think it is called NBT data, and it seems that it is always loaded, using resources even with multi-player off. I think it keeps the NBT in RAM but the problem is it doesn&apos;t need to use it. It loads data of all players inventories, coordinates, direction, skin, etc when they aren&apos;t even on the world at the time. This results in massive lag or freezes for a few seconds when crossing chunks.&lt;/p&gt;</comment>
                            <comment id="330966" author="gatharian" created="Sat, 24 Sep 2016 23:15:33 +0200"  >&lt;p&gt;Does this bug affect 0.15.9? If so please respond.&lt;/p&gt;</comment>
                            <comment id="322379" author="comments2010" created="Thu, 28 Jul 2016 12:20:51 +0200"  >&lt;p&gt;This is a port forwarded LAN world with a player limit of 5, but many have joined. It lags even when I turn multiplayer off.&lt;/p&gt;</comment>
                            <comment id="322292" author="luisrobles" created="Wed, 27 Jul 2016 19:55:00 +0200"  >&lt;p&gt; &quot;I&apos;ve had maybe ~300-400 people join this world&quot;, at the same time? is this an external server?&lt;br/&gt;
My questions are because, RAM memory need a lot of space if a lot of players join at the same time in a server.&lt;/p&gt;</comment>
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