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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-5043] Reloading worlds causes some light sources to only light the chunk they are placed in</title>
                <link>https://bugs.mojang.com/browse/MC-5043</link>
                <project id="10400" key="MC">Minecraft: Java Edition</project>
                    <description>&lt;p&gt;If you have a light source and you reload the world, it sometimes will only display light in its chunk.&lt;/p&gt;

&lt;p&gt;Here&apos;s the easiest way to see this:  &lt;br/&gt;
Make a superflat world, set time to 18000, place a Redstone lamp and power it with a lever (because Redstone torches make light and buttons don&apos;t constantly power them) and reload the world by saving and quitting and starting the world again.&lt;/p&gt;

&lt;p&gt;See the screenshots below for examples.&lt;br/&gt;
I have tried torches, Jack-O-Lanterns, and Redstone Lamps.&lt;br/&gt;
Redstone Lamps seem to do this more often than torches.&lt;br/&gt;
EDIT: You can&apos;t be near the light source if you try to reproduce it. Try flying like I am in the screenshots.&lt;br/&gt;
Redstone torches don&apos;t seem to do it.&lt;br/&gt;
If it doesn&apos;t happen on the first try, then do a different world. I only got it to happen in a few of my worlds. They were both superflat.  &lt;/p&gt;

&lt;p&gt;Seems slightly rare but does occur. Also there is no definite way to reproduce this except to keep trying. It will happen eventually.&lt;/p&gt;</description>
                <environment>Java 7&lt;br/&gt;
OS X</environment>
        <key id="17605">MC-5043</key>
            <summary>Reloading worlds causes some light sources to only light the chunk they are placed in</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="firehunterx">FireHunterX</reporter>
                        <labels>
                    </labels>
                <created>Thu, 20 Dec 2012 15:51:44 +0100</created>
                <updated>Sun, 1 Dec 2013 03:29:59 +0100</updated>
                            <resolved>Tue, 26 Nov 2013 21:04:14 +0100</resolved>
                                    <version>Minecraft 1.4.5</version>
                    <version>Minecraft 1.4.6</version>
                    <version>Minecraft 1.4.7</version>
                    <version>Snapshot 13w01b</version>
                    <version>Snapshot 13w03a</version>
                    <version>Minecraft 1.5.2</version>
                    <version>Snapshot 13w18c</version>
                    <version>Snapshot 13w19a</version>
                                                                        <votes>1</votes>
                                    <watches>3</watches>
                                                                            <comments>
                            <comment id="122766" author="htl2001" created="Sun, 1 Dec 2013 03:28:14 +0100"  >&lt;p&gt;This still occurs in 1.7.2, multiplayer, client side only (blocklight value is correct in an editor for example) &lt;a href=&quot;http://i.imgur.com/h9ZJw9p.jpg&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;http://i.imgur.com/h9ZJw9p.jpg&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="121429" author="talven81" created="Tue, 26 Nov 2013 21:04:14 +0100"  >&lt;p&gt;No response in 4 months, assuming no longer an issue.&lt;/p&gt;</comment>
                            <comment id="94646" author="kumasasa" created="Sat, 27 Jul 2013 02:22:38 +0200"  >&lt;p&gt;Is this still a concern in the current Minecraft version 1.6.2 / Launcher version 1.1.2 ? If so, please update the affected versions in order to best aid Mojang ensuring bugs are still valid in the latest releases/pre-releases.&lt;/p&gt;
</comment>
                            <comment id="68079" author="firehunterx" created="Thu, 23 May 2013 19:53:38 +0200"  >&lt;p&gt;This is sometimes observed when you /tp.&lt;/p&gt;</comment>
                            <comment id="67586" author="firehunterx" created="Mon, 20 May 2013 17:46:15 +0200"  >&lt;p&gt;Still happening!&lt;/p&gt;

&lt;p&gt;Why doesn&apos;t this seem to occur in multiplayer?&lt;/p&gt;</comment>
                            <comment id="59105" author="bljat" created="Sat, 6 Apr 2013 21:27:31 +0200"  >&lt;p&gt;Is this still a concern in the current Minecraft version? If so, please update the affected versions in order to best aid Mojang ensuring bugs are still valid in the latest releases/pre-releases.&lt;/p&gt;</comment>
                            <comment id="48673" author="firehunterx" created="Fri, 1 Mar 2013 16:48:55 +0100"  >&lt;p&gt;Still happening as of 13w09a/b&lt;/p&gt;</comment>
                            <comment id="43868" author="shufboyardee" created="Tue, 5 Feb 2013 23:40:20 +0100"  >&lt;p&gt;I can verify this for 13w05a.&lt;/p&gt;</comment>
                    </comments>
                <issuelinks>
                            <issuelinktype id="10102">
                    <name>Duplicate</name>
                                                                <inwardlinks description="is duplicated by">
                                        <issuelink>
            <issuekey id="18177">MC-5549</issuekey>
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                <attachments>
                            <attachment id="15666" name="2012-12-20_09.48.00.png" size="778843" author="firehunterx" created="Thu, 20 Dec 2012 15:51:44 +0100"/>
                            <attachment id="15667" name="2012-12-20_09.48.07.png" size="815598" author="firehunterx" created="Thu, 20 Dec 2012 15:51:44 +0100"/>
                            <attachment id="17647" name="2013-01-08_20.22.54.png" size="596523" author="firehunterx" created="Wed, 9 Jan 2013 02:24:25 +0100"/>
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