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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-235] Minecraft lagged out on me(which it never does) when creating a costimized superflat world when editing the superflat preset to be different blocks</title>
                <link>https://bugs.mojang.com/browse/MC-235</link>
                <project id="10400" key="MC">Minecraft: Java Edition</project>
                    <description>&lt;p&gt;Minecraft lagged out on me(which it never does) when creating a customized superflat world when editing the superflat preset to be different blocks.&lt;/p&gt;

&lt;p&gt;*What I expected to happen was minecraft to run normaly at about 25-30 fps&lt;/p&gt;


&lt;p&gt;*What actually happened was when I started up my custiomized superfalt it started lagging out to 0 fps. I tried restarting minecraft multiple times and no changes.&lt;/p&gt;


&lt;p&gt;&lt;b&gt;Steps to Reproduce:&lt;/b&gt;&lt;br/&gt;
1. Get Minecraft Pre-release 1.4.2 or 1.4.1.&lt;br/&gt;
2. Make a superflat world customizing the preset with different blocks.&lt;br/&gt;
3. Minecraft will start lagging out at about 0-2 fps&lt;/p&gt;</description>
                <environment>Windows 7 Home Priemium</environment>
        <key id="11487">MC-235</key>
            <summary>Minecraft lagged out on me(which it never does) when creating a costimized superflat world when editing the superflat preset to be different blocks</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="7">Invalid</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="williamiscool99">William Jones</reporter>
                        <labels>
                    </labels>
                <created>Thu, 25 Oct 2012 00:08:09 +0200</created>
                <updated>Mon, 10 Apr 2017 15:47:18 +0200</updated>
                            <resolved>Tue, 6 Nov 2012 23:26:57 +0100</resolved>
                                    <version>Minecraft 1.4.1</version>
                    <version>Minecraft 1.4.2</version>
                                                                        <votes>2</votes>
                                    <watches>1</watches>
                                                                            <comments>
                            <comment id="18925" author="do" created="Tue, 6 Nov 2012 23:16:30 +0100"  >&lt;p&gt;Resolving as invalid since this problem has apparently gone away.&lt;/p&gt;</comment>
                            <comment id="17673" author="williamiscool99" created="Sat, 3 Nov 2012 16:51:53 +0100"  >&lt;p&gt;Thank you for this help. 1.4.2 now runs fine so no problem anymore.&lt;/p&gt;


&lt;p&gt;On Sat, Nov 3, 2012 at 6:30 AM, Allen Doe (JIRA)&lt;/p&gt;
</comment>
                            <comment id="17575" author="drmule" created="Sat, 3 Nov 2012 11:30:11 +0100"  >&lt;p&gt;More information...&lt;/p&gt;

&lt;p&gt;1.3.2 runs smooth, but starting from at least 2 snapshots before the 1.4 pre-release I&apos;ve had a hard time playing some superflat maps.&lt;/p&gt;

&lt;p&gt;Normal maps play fine, no more lag than usual and no eventual crawl. Some of the presets for superflat also have no issue.&lt;/p&gt;

&lt;p&gt;Try the &apos;Overworld&apos; preset though, and you may experience lag. The lag leads to eventual crawl which leads to items not being placed in chests or your inventory properly.&lt;/p&gt;

&lt;p&gt;I will try different combinations of features when I have more time and report which features are causing the lag.&lt;/p&gt;

&lt;p&gt;Let me be clear again - 1.3 ran fine on superflat, the normal superflat runs fine on my 1.4.x, but it is certain features of other presets and custom maps that is causing the lag. My computer runs MC fine 99% of the time.&lt;/p&gt;</comment>
                            <comment id="17000" author="ninjacraft" created="Fri, 2 Nov 2012 09:20:15 +0100"  >&lt;p&gt;This lag happens to me too when im using (2;7,2x3,2;1;village,stronghold,mineshaft) superflat world it is so anoyying&lt;/p&gt;</comment>
                            <comment id="13407" author="drmule" created="Thu, 25 Oct 2012 20:12:28 +0200"  >&lt;p&gt;I reported this a few bugs ago &lt;img class=&quot;emoticon&quot; src=&quot;https://bugs.mojang.com/images/icons/emoticons/smile.png&quot; height=&quot;16&quot; width=&quot;16&quot; align=&quot;absmiddle&quot; alt=&quot;&quot; border=&quot;0&quot;/&gt;  Deffo worse on Superflat with custom blocks (any but mine has a lot of pure ore levels in it FYI). This has been the case since at least 2 snaps before 1.4 pre. I&apos;m on Win7 SP1, 64bit Java (latest, but happened with the previous install too), 4 GB mem, i3 cpu.&lt;/p&gt;</comment>
                            <comment id="12630" author="poopfish" created="Thu, 25 Oct 2012 00:20:04 +0200"  >&lt;p&gt;What blocks did you use in the preset?&lt;/p&gt;</comment>
                            <comment id="12618" author="s3lg" created="Thu, 25 Oct 2012 00:15:53 +0200"  >&lt;p&gt;i just tried this about 5 times no lag outs for me&lt;/p&gt;</comment>
                            <comment id="12611" author="void1452" created="Thu, 25 Oct 2012 00:11:00 +0200"  >&lt;p&gt;More SPECS please :3 (RAM, CPU, Java Version)&lt;/p&gt;</comment>
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