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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-734] Wither Skeletons not spawning in pre-generated fortress</title>
                <link>https://bugs.mojang.com/browse/MC-734</link>
                <project id="10400" key="MC">Minecraft: Java Edition</project>
                    <description>&lt;p&gt;I have a Nether fortress that I generated in the 1.3 snapshots, and it will not spawn wither skeletons/normal skeletons/blazes naturally. I generated a new world in creative and looked for a nether fortress and it did have these natural spawns. This can be fixed by generating a new fortress, but I want to keep mine &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;</description>
                <environment>Windows 7</environment>
        <key id="12012">MC-734</key>
            <summary>Wither Skeletons not spawning in pre-generated fortress</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="1">Fixed</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="muffan">Muff an</reporter>
                        <labels>
                            <label>fortress</label>
                            <label>nether</label>
                            <label>spawning</label>
                            <label>wither</label>
                    </labels>
                <created>Fri, 26 Oct 2012 15:34:55 +0200</created>
                <updated>Mon, 4 May 2015 23:22:58 +0200</updated>
                            <resolved>Sun, 25 Nov 2012 08:32:11 +0100</resolved>
                                    <version>Minecraft 1.4.2</version>
                                    <fixVersion>Minecraft 1.4.5</fixVersion>
                                                        <votes>3</votes>
                                    <watches>3</watches>
                                                                            <comments>
                            <comment id="24744" author="kumasasa" created="Sun, 25 Nov 2012 08:32:11 +0100"  >&lt;p&gt;Ok, issue resolved. Thanks for the feedback.&lt;/p&gt;</comment>
                            <comment id="24731" author="avatar1999" created="Sun, 25 Nov 2012 05:23:04 +0100"  >&lt;p&gt;Just updated our server, and my client to 1.4.5.  Seems like this issue has&lt;br/&gt;
been fixed.  Now getting Wither Skeletons in ALL nether fortresses.  &lt;b&gt;cheer&lt;/b&gt;&lt;/p&gt;</comment>
                            <comment id="24552" author="kumasasa" created="Sat, 24 Nov 2012 11:38:52 +0100"  >&lt;p&gt;Any update on this issue with 1.4.5 ?&lt;br/&gt;
In my pre-generated fortresses the nether skeletons are spawning.&lt;/p&gt;</comment>
                            <comment id="17178" author="avatar1999" created="Fri, 2 Nov 2012 15:58:12 +0100"  >&lt;p&gt;Confirmed on 1.4.2 SMP as well.  Even when locating a new Nether Fortress, there were Wither Skeletons there, until you leave the area and come back...then nothing.&lt;/p&gt;
</comment>
                            <comment id="15154" author="yamikuronue" created="Mon, 29 Oct 2012 20:26:47 +0100"  >&lt;p&gt;yes, with a 20% chance. So if I&apos;m seeing several of those and not one wither skeleton, something seems buggy. &lt;/p&gt;</comment>
                            <comment id="15153" author="kumasasa" created="Mon, 29 Oct 2012 20:21:55 +0100"  >&lt;p&gt;In nether fortresses there will also spawn regular skeletons.&lt;/p&gt;</comment>
                            <comment id="15109" author="yamikuronue" created="Mon, 29 Oct 2012 19:18:03 +0100"  >&lt;p&gt;I&apos;m getting regular skeletons but not wither skeletons. Shouldn&apos;t it be all or nothing?&lt;/p&gt;</comment>
                            <comment id="14864" author="kumasasa" created="Mon, 29 Oct 2012 00:23:09 +0100"  >&lt;p&gt;Update: In my old V1.1 created fortress there are spawning wither skeletons. The second fortress is buried in netherrack and has no open areas, maybe that&apos;s influencing the spawning of wither skeletons. &lt;/p&gt;</comment>
                            <comment id="14091" author="kumasasa" created="Fri, 26 Oct 2012 20:36:04 +0200"  >&lt;p&gt;I can confirm that issue.&lt;/p&gt;

&lt;p&gt;The world here was generated with V1.0 and every version and snapshot was installed.&lt;br/&gt;
In both of our fortresses there are spawning a lot of blazes but never ever a single wither skeleton.&lt;br/&gt;
The first fortress was discovered with V1.1 but revisited with 12w37a and following, the second fortress was discovered with 12w39a or similar.&lt;/p&gt;

&lt;p&gt;Someone did evaluate that the Nether fortress chunks forget to write back the &quot;Wither Skeleton&quot; flag when unloading, but I cannot find the text.&lt;/p&gt;

&lt;p&gt;Some Comments of &lt;a href=&quot;http://www.minecraftwiki.net/wiki/Talk:Wither_Skeleton&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;http://www.minecraftwiki.net/wiki/Talk:Wither_Skeleton&lt;/a&gt;&lt;br/&gt;
&lt;cite&gt;When I went further out and found a Nether Fortress in previously unspawned chunks I saw quite a few Wither Skeleton&apos;s spawn. However at my old Nether Fortress (previous to installing the snapshot) I don&apos;t see them spawn at all. Anyone else see this&lt;/cite&gt;?&lt;/p&gt;

&lt;ul class=&quot;alternate&quot; type=&quot;square&quot;&gt;
	&lt;li&gt;&lt;cite&gt;I&apos;ll confirm this, I goofed around in a previously generated Nether Fortress(NF) one night and never saw one. Later, I found an unknown NF and they were all over place, about half the rate of ZPM. A work around would be to evacuate the Nether, exit the game and delete(or rename) the &quot;DIM-1&quot; folder in your save folder so the next time you enter everything is reset its regenerated fresh.&lt;/cite&gt;&lt;/li&gt;
	&lt;li&gt;&lt;cite&gt;Yes, same here. I&apos;ve been running around two previously generated Nether Fortresses and nothing. No Wither Skeletons and no Blazes. Decided to hunt for a freshly generated Nether Fortress and they spawn aplenty there. I&apos;m surprised there&apos;s so little information on this.&lt;/cite&gt;&lt;/li&gt;
	&lt;li&gt;&lt;cite&gt;I have seen them in a very old nether fortress that has been there since they were first introduced, so I think you two may have just been unlucky.&lt;/cite&gt;&lt;/li&gt;
&lt;/ul&gt;

</comment>
                            <comment id="13966" author="ezekielelin" created="Fri, 26 Oct 2012 15:35:55 +0200"  >&lt;p&gt;Nothing that can be done because the game simply does not recognize the fortress. The 1.3 Snapshot is probably the culprit as Etho still gets spawns in his 1.8beta world&lt;/p&gt;</comment>
                    </comments>
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            <issuekey id="13167">MC-1798</issuekey>
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