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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>[MC-4993] Significant Superflat Custom World Generation Error </title>
                <link>https://bugs.mojang.com/browse/MC-4993</link>
                <project id="10400" key="MC">Minecraft: Java Edition</project>
                    <description>&lt;p&gt;If a Superflat Preset Code is used that generates an open layer (of air, a dozen or so blocks high) directly underneath a layer of solid non-transparent blocks going up to the max World Height, AND have the code generate villages, the world would fail to load at all (or just take FAR more time to load than I have the patience for). &lt;/p&gt;

&lt;p&gt;(Discovered originally in Creative mode, but (I think) the bug can occur in Survival mode as well. I first found this bug around 12w40a, and every now and then, was able to reproduce it in several later versions.)&lt;/p&gt;

&lt;p&gt;How To Reproduce:&lt;/p&gt;

&lt;p&gt;1)Enter a Superflat Preset Code that fulfills the above details.&lt;/p&gt;

&lt;p&gt;   Example Code: 2;7,59x1,3x3,2,180x0,12x7;1;biome_1,village(distance=0 size=1),decoration,lake&lt;/p&gt;

&lt;p&gt;2)Try to generate that world.&lt;/p&gt;

&lt;p&gt;3)The final result should be either the world doesn&apos;t load, takes exceedingly long to load, or you (the person reproducing this bug) run out of patience.&lt;/p&gt;</description>
                <environment>Windows 7, Java 64-bit</environment>
        <key id="17551">MC-4993</key>
            <summary>Significant Superflat Custom World Generation Error </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="3">Duplicate</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="snowgolemkirby">Idea Guy</reporter>
                        <labels>
                            <label>world</label>
                    </labels>
                <created>Wed, 19 Dec 2012 16:12:42 +0100</created>
                <updated>Sun, 3 May 2015 06:20:53 +0200</updated>
                            <resolved>Sun, 17 Mar 2013 03:24:59 +0100</resolved>
                                    <version>Minecraft 1.4.5</version>
                    <version>Minecraft 1.4.6</version>
                                                                        <votes>0</votes>
                                    <watches>1</watches>
                                                                            <comments>
                            <comment id="54353" author="bljat" created="Sun, 17 Mar 2013 03:24:59 +0100"  >&lt;p&gt;Duplicate of &lt;a href=&quot;https://bugs.mojang.com/browse/MC-1510&quot; title=&quot;Custom superflat world crashes when certain block type is chosen&quot; class=&quot;issue-link&quot; data-issue-key=&quot;MC-1510&quot;&gt;&lt;del&gt;MC-1510&lt;/del&gt;&lt;/a&gt;.&lt;/p&gt;</comment>
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                <issuelinks>
                            <issuelinktype id="10102">
                    <name>Duplicate</name>
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            <issuekey id="12843">MC-1510</issuekey>
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                <attachments>
                            <attachment id="15617" name="Picture of World Layers used when reproducing bug in 1_4_6pre.png" size="25913" author="snowgolemkirby" created="Wed, 19 Dec 2012 16:12:43 +0100"/>
                            <attachment id="15615" name="Proof of Superflat Bug - Part 1.png" size="19346" author="snowgolemkirby" created="Wed, 19 Dec 2012 16:12:43 +0100"/>
                            <attachment id="15616" name="Proof of Superflat Bug - Part 2.png" size="22625" author="snowgolemkirby" created="Wed, 19 Dec 2012 16:12:43 +0100"/>
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