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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>
    </build-info>


<item>
            <title>[MC-3259] Long redstone wire does not update/behaves strange in newly loaded chunks</title>
                <link>https://bugs.mojang.com/browse/MC-3259</link>
                <project id="10400" key="MC">Minecraft: Java Edition</project>
                    <description>&lt;p&gt;I have a long redstone wire in one direction (of course with repeaters). For example I have a piston 1000 blocks away and I press a button, so that the piston should do something - it will not do anything, because the chunk, where the piston is, is not loaded, I know this. But when I create the wire (not powered) and then go back an power it, only the wire within the loaded chunks power itself. But if I go along the wire, I will get to a point, where the wire changes from powered to not powered. And this point is exactly the last chunk that was loaded, when I powered the wire. I expected, that the wire updates itself when new chunks are loaded, but it only does, when I change a block beside where the wire changed its power.&lt;br/&gt;
I hope, I could explain it understandable. Please ask, if you have fourther questions.&lt;/p&gt;

&lt;p&gt;See this video for more details: &lt;a href=&quot;http://www.youtube.com/watch?v=e_MM97ifASw&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;http://www.youtube.com/watch?v=e_MM97ifASw&lt;/a&gt;&lt;/p&gt;</description>
                <environment></environment>
        <key id="15241">MC-3259</key>
            <summary>Long redstone wire does not update/behaves strange in newly loaded chunks</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="k&#228;sek&#246;nig">Michi K.</reporter>
                        <labels>
                            <label>redstone</label>
                    </labels>
                <created>Sat, 17 Nov 2012 12:10:26 +0100</created>
                <updated>Sun, 3 May 2015 06:23:52 +0200</updated>
                            <resolved>Wed, 6 Mar 2013 14:29:01 +0100</resolved>
                                    <version>Minecraft 1.4.4</version>
                    <version>Minecraft 1.4.6</version>
                    <version>Minecraft 1.4.7</version>
                    <version>Snapshot 13w01a</version>
                    <version>Snapshot 13w01b</version>
                    <version>Snapshot 13w03a</version>
                    <version>Snapshot 13w04a</version>
                    <version>Snapshot 13w07a</version>
                    <version>Snapshot 13w09a</version>
                    <version>Snapshot 13w09b</version>
                    <version>Snapshot 13w09c</version>
                                    <fixVersion>Snapshot 13w10b</fixVersion>
                                                        <votes>9</votes>
                                    <watches>5</watches>
                                                                            <comments>
                            <comment id="128860" author="obsidianminor" created="Sat, 4 Jan 2014 03:19:26 +0100"  >&lt;p&gt;This is a continuing problem. On my private server I have a automatic subway station, but when ever it goes out of a spawn chunk, it stops until the chunk is loaded where it then continues to the next station.&lt;/p&gt;</comment>
                            <comment id="50301" author="grygrflzr" created="Wed, 6 Mar 2013 14:29:01 +0100"  >&lt;p&gt;Marked as resolved. Please report if a regression occurs.&lt;/p&gt;</comment>
                            <comment id="50276" author="the.modificator" created="Wed, 6 Mar 2013 13:56:10 +0100"  >&lt;p&gt;It looks like that by fixing &lt;a href=&quot;https://bugs.mojang.com/browse/MC-711&quot; title=&quot;Tile ticks of connected redstone components might be executed in the wrong order when unloading/reloading chunks&quot; class=&quot;issue-link&quot; data-issue-key=&quot;MC-711&quot;&gt;MC-711&lt;/a&gt; this bug was fixed as well. The problem does not appear in 13w10b for me anymore. Therefore, this ticket can be marked as resolved.&lt;/p&gt;</comment>
                            <comment id="48744" author="the.modificator" created="Fri, 1 Mar 2013 19:00:52 +0100"  >&lt;p&gt;Still occurs in 13w09c.&lt;/p&gt;

&lt;p&gt;On a side note: While playing around with long redstone wires a bit more, I noticed that both redstone dust and pistons do actually update outside of currently loaded chunks when the energy level changes. The same is true for rail T-intersections. Repeaters and comparators that are placed further away than the &quot;middle&quot; of one of the loaded chunks furthest away from the player (as demonstrated in the video linked above) do not update automatically at all. Torches further away than this magic chunk middle seem to take a (random) amount of time to update when returning to the chunk (which - I think - is caused by the same random update mechanism that is also responsible for randomly growing trees, sugar cane, wheat etc.).&lt;/p&gt;

&lt;p&gt;So while this bug still causes a very inconsistent update behavior, my finding offers some kind of workaround for long redstone wires: Simply replace all repeaters with redstone blocks that are pushed by sticky pistons. However, if you need to use other redstone components than just pistons and wires on the &quot;end&quot; of the cable, you&apos;ll still have to cause some block update there somehow to make them work.&lt;/p&gt;</comment>
                            <comment id="48159" author="the.modificator" created="Thu, 28 Feb 2013 00:39:28 +0100"  >&lt;p&gt;...as well as in 13w09b.&lt;/p&gt;</comment>
                            <comment id="47708" author="the.modificator" created="Tue, 26 Feb 2013 17:32:45 +0100"  >&lt;p&gt;This is still reproducible in 13w09a.&lt;/p&gt;</comment>
                            <comment id="47143" author="the.modificator" created="Sat, 23 Feb 2013 00:42:38 +0100"  >&lt;p&gt;This is still reproducible in 13w07a.&lt;/p&gt;</comment>
                            <comment id="42469" author="struppi" created="Fri, 1 Feb 2013 19:26:13 +0100"  >&lt;p&gt;It affects more than only redstone. This need to be fixed! (Redstone, Minecraft, Water/Lava)&lt;br/&gt;
&lt;a href=&quot;https://mojang.atlassian.net/browse/MC-8940&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://mojang.atlassian.net/browse/MC-8940&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="39441" author="the.modificator" created="Thu, 24 Jan 2013 18:38:23 +0100"  >&lt;p&gt;In the latest version (13w04a) the behavior is even stranger. I filed an issue as &lt;a href=&quot;https://bugs.mojang.com/browse/MC-8194&quot; title=&quot;Redstone signal propagates very strangely in unloaded chunks&quot; class=&quot;issue-link&quot; data-issue-key=&quot;MC-8194&quot;&gt;&lt;del&gt;MC-8194&lt;/del&gt;&lt;/a&gt; which seems to be related to this issue. (However, it&apos;s not an actual duplicate... a mod changed the status too quickly unfortunately. &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;</comment>
                            <comment id="22747" author="kumasasa" created="Sun, 18 Nov 2012 00:57:34 +0100"  >&lt;p&gt;No need to be sorry, that was just a suggestion&lt;/p&gt;</comment>
                            <comment id="22745" author="k&#228;sek&#246;nig" created="Sun, 18 Nov 2012 00:55:11 +0100"  >&lt;p&gt;I changed it - sorry for the wrong title.&lt;/p&gt;</comment>
                            <comment id="22741" author="kumasasa" created="Sun, 18 Nov 2012 00:46:08 +0100"  >&lt;p&gt;Reopened due to new description.&lt;br/&gt;
The description may be &quot;Long redstone wire does not update in newly loaded chunks&quot;&lt;/p&gt;</comment>
                            <comment id="22740" author="k&#228;sek&#246;nig" created="Sun, 18 Nov 2012 00:40:24 +0100"  >&lt;p&gt;Here are some screenshots, I hope, they explain it in a better way.&lt;br/&gt;
You see, if you change a block beside the wire (added a gold block), the wire updates, otherwise not.&lt;/p&gt;</comment>
                            <comment id="22728" author="k&#228;sek&#246;nig" created="Sun, 18 Nov 2012 00:19:06 +0100"  >&lt;p&gt;I think, I din&apos;t explain good enough. :/ I know, how Redstone works and that nothing happens in unloaded chunks. But the wire does not update, also not when chunks are loaded then!&lt;br/&gt;
I will try to explain again. We have a long, long redstone wire which is not powered. I stand at the end of the wire and power it - the redstone wire is powered in all loaded chunks. Then I walk along the redstone wire (new chunks are loaded), but the redstone wire does not update in the new loaded chunks.&lt;/p&gt;</comment>
                            <comment id="22721" author="grum" created="Sat, 17 Nov 2012 23:55:44 +0100"  >&lt;p&gt;If chunks are not loaded nothing will happen. This is intentional.&lt;/p&gt;</comment>
                    </comments>
                <issuelinks>
                            <issuelinktype id="10102">
                    <name>Duplicate</name>
                                                                <inwardlinks description="is duplicated by">
                                        <issuelink>
            <issuekey id="19005">MC-6335</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="19831">MC-7053</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="21110">MC-8194</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="21255">MC-8337</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="22305">MC-8940</issuekey>
        </issuelink>
                            </inwardlinks>
                                    </issuelinktype>
                            <issuelinktype id="10103">
                    <name>Relates</name>
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                                        <issuelink>
            <issuekey id="11989">MC-711</issuekey>
        </issuelink>
                            </outwardlinks>
                                                        </issuelinktype>
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                            <attachment id="13548" name="2012-11-18_00.31.26.png" size="419039" author="k&#228;sek&#246;nig" created="Sun, 18 Nov 2012 00:40:24 +0100"/>
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