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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>[MCPE-18657] mobs despawn or spawn at sea lanterns (while player is 20-30 blocks away)</title>
                <link>https://bugs.mojang.com/browse/MCPE-18657</link>
                <project id="10200" key="MCPE">Minecraft (Bedrock codebase)</project>
                    <description>&lt;p&gt;This one keeps developing...&lt;/p&gt;

&lt;p&gt;The summary as I understand now is that spawning and despawning is not working in chunks designated as Ocean monuments (after the blocks have been removed).&lt;/p&gt;

&lt;p&gt;Currently I&apos;m finding that mobs are &lt;b&gt;spawning within sea lanterns&lt;/b&gt; during the day. I installed Soul sand under the lanterns which immobilises them. If I hit them with a sword, they still can&apos;t move but only then do they start burning in sunlight, still half in the sea lantern. If a bow with power is used, it moves them off the soul sand and they can walk around, burning.&lt;/p&gt;

&lt;p&gt;I attech two new pictures of mobs who&apos;ve just spawned).&lt;/p&gt;

&lt;p&gt;So I am reporting mobs spawning randomly where they shouldn&apos;t, and also despawning as per originalreport below.&lt;/p&gt;

&lt;p&gt;It must be the Ocean Monument!&lt;/p&gt;

&lt;p&gt;Original report follows.&lt;/p&gt;

&lt;p&gt;I am building a guardian farm and originally reported seeing guardians despawn. I&apos;ve since seen a creeper also disappear at the same place. It seems to be that when a mob walks into a sea lantern and tries to climb it, it despawns (it could be prismarine brick, which is next to the sea lantern).&lt;/p&gt;

&lt;p&gt;The pictures show one location where it happened with guardians swimming against the sea lantern but now I&apos;ve removed the water, a creeper vanished in the same way in a different corner that is identical in components in my symmetrical structure.&lt;/p&gt;

&lt;p&gt;I&apos;ll remove the lanterns and see if it persists, and update.&lt;/p&gt;</description>
            <key id="156177">MCPE-18657</key>
            <summary>mobs despawn or spawn at sea lanterns (while player is 20-30 blocks away)</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="ophiochos">Jason Davies</reporter>
                        <labels>
                            <label>despawn</label>
                            <label>mob</label>
                            <label>spawn-chunk</label>
                    </labels>
                <created>Tue, 22 Nov 2016 01:42:43 +0100</created>
                <updated>Wed, 25 Nov 2020 18:06:33 +0100</updated>
                            <resolved>Tue, 5 Jun 2018 18:03:26 +0200</resolved>
                                    <version>0.16.2</version>
                                                                        <votes>1</votes>
                                    <watches>2</watches>
                                                                            <comments>
                            <comment id="849264" author="arisabot" created="Wed, 25 Nov 2020 18:06:33 +0100"  >&lt;p&gt;An attachment with a disallowed file extension has been removed from this ticket.&lt;/p&gt;

&lt;p&gt;Executable files and documents are not allowed as attachments.&lt;br/&gt;
Please attach crash reports, log files and screenshots as they are instead of pasting them into a document.&lt;br/&gt;
&lt;sub&gt;&lt;font color=&quot;#888&quot;&gt;&amp;#8211; I am a bot. This action was performed automatically! Please report any issues in &lt;a href=&quot;https://discordapp.com/invite/rpCyfKV&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;Discord&lt;/a&gt; or &lt;a href=&quot;https://www.reddit.com/r/Mojira/&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;Reddit&lt;/a&gt;&lt;/font&gt;&lt;/sub&gt;&lt;/p&gt;</comment>
                            <comment id="458499" author="mega_spud" created="Tue, 5 Jun 2018 18:03:26 +0200"  >&lt;p&gt;Cleaning up old tickets:  This ticket has not been updated recently (1 year+) so is being closed as &lt;em&gt;Cannot Reproduce&lt;/em&gt;.  If you feel this is still a valid issue then please comment, or create a new ticket following the &lt;a href=&quot;http://help.mojang.com/customer/portal/articles/801354-writing-helpful-bug-reports-for-minecraft&quot; title=&quot;How To Write helpful bug reports&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;Issue Guidelines&lt;/a&gt;.&lt;/p&gt;

&lt;p&gt;&lt;b&gt;Quick Links&lt;/b&gt;:&lt;br/&gt;
&#128211; &lt;a href=&quot;http://help.mojang.com/customer/portal/articles/801354-writing-helpful-bug-reports-for-minecraft&quot; title=&quot;How To Write Awesome Tickets! &#128175;&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;Issue Guidelines&lt;/a&gt; &amp;#8211; &#128172; &lt;a href=&quot;https://www.reddit.com/r/MCPE/&quot; title=&quot;Help From the Minecraft Community &#128377;&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;Community Support&lt;/a&gt; &amp;#8211; ?&#9731;DCE7 &lt;a href=&quot;https://feedback.minecraft.net/&quot; title=&quot;Feedback and Suggestions &#9997;&#65039;&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;Feedback&lt;/a&gt; &amp;#8211; &#128214; &lt;a href=&quot;http://minecraft.gamepedia.com/Minecraft_Wiki&quot; title=&quot;Official Minecraft Wiki &#127891;&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;Game Wiki&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="379226" author="ophiochos" created="Fri, 21 Apr 2017 14:59:31 +0200"  >&lt;p&gt;Still occurring in 1.06! They will spawn even if the block above is glass &amp;#8211; ie there is theoretically no air. &lt;span class=&quot;image-wrap&quot; style=&quot;&quot;&gt;&lt;a id=&quot;137979_thumb&quot; href=&quot;https://bugs.mojang.com/secure/attachment/137979/137979_2017-04-16+17.00.38.png&quot; title=&quot;2017-04-16 17.00.38.png&quot; file-preview-type=&quot;image&quot; file-preview-id=&quot;137979&quot; file-preview-title=&quot;2017-04-16 17.00.38.png&quot;&gt;&lt;img src=&quot;https://bugs.mojang.com/secure/thumbnail/137979/_thumb_137979.png&quot; style=&quot;border: 0px solid black&quot; role=&quot;presentation&quot;/&gt;&lt;/a&gt;&lt;/span&gt; &lt;/p&gt;</comment>
                            <comment id="374421" author="ophiochos" created="Tue, 28 Mar 2017 23:53:30 +0200"  >&lt;p&gt;Update. Still seems to happen in 1.0.5 (iOS) &lt;/p&gt;

&lt;p&gt;Though they don&apos;t get trapped in the same way, I am still seeing mobs (mainly zombies) spawn in areas well-lit exclusively by sea lanterns (but with sunligth blocked) during daytime. This is with solid lines of sea-lanterns in passageways only four across.&lt;/p&gt;

&lt;p&gt;But areas lit by sea-lanterns that are &lt;em&gt;not&lt;/em&gt; continuous don&apos;t seem to have it happening. I&apos;ve only seen it in continuous lines of them. Will keep exploring this (but just lost all the villagers in a large complex because of this argh)&lt;/p&gt;

&lt;p&gt;Update: see attachment 2017-04-01 18.10.21.&lt;br/&gt;
They wander free, it seems, but spawn in the sea lanterns irrespective of light (note it is daytime and the skeleton should be burning)&lt;/p&gt;



&lt;p&gt;&lt;span class=&quot;error&quot;&gt;&amp;#91;Said earlier -- I can&amp;#39;t reproduce now. Have done a decent but not exhaustive testing.&amp;#93;&lt;/span&gt;&lt;/p&gt;</comment>
                            <comment id="374201" author="aspergerian" created="Mon, 27 Mar 2017 05:41:18 +0200"  >&lt;p&gt;Is this still an issue in 1.0.4.11?&lt;/p&gt;</comment>
                            <comment id="345682" author="ophiochos" created="Wed, 23 Nov 2016 21:47:51 +0100"  >&lt;p&gt;Interesting addition: I&apos;m pretty sure a creeper disappeared in one of the corners (with a sea lantern in it) in the picture so it&apos;s not just guardians (I&apos;ve since removed the water). Will adjust description and title accordingly.&lt;/p&gt;</comment>
                            <comment id="345387" author="ophiochos" created="Tue, 22 Nov 2016 01:53:58 +0100"  >&lt;p&gt;These show the distance and the kinds of spots they vanish in.&lt;/p&gt;</comment>
                    </comments>
                    <attachments>
                            <attachment id="136204" name="2017-04-01 18.10.21.png" size="4474000" author="ophiochos" created="Sat, 1 Apr 2017 19:13:20 +0200"/>
                            <attachment id="137979" name="2017-04-16 17.00.38.png" size="921195" author="ophiochos" created="Fri, 21 Apr 2017 14:59:36 +0200"/>
                            <attachment id="129958" name="Creeper spawned in sea lantern.png" size="2604798" author="ophiochos" created="Tue, 29 Nov 2016 01:27:45 +0100"/>
                            <attachment id="129959" name="skeleton spawned in sea lantern.png" size="2816397" author="ophiochos" created="Tue, 29 Nov 2016 01:27:45 +0100"/>
                            <attachment id="129957" name="zombie spawned in sea lantern.png" size="1695849" author="ophiochos" created="Tue, 29 Nov 2016 01:27:45 +0100"/>
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