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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-6486] Variable redstone strength causing strange update behavior</title>
                <link>https://bugs.mojang.com/browse/MC-6486</link>
                <project id="10400" key="MC">Minecraft: Java Edition</project>
                    <description>&lt;p&gt;The new variable redstone strength is having some strange effects on certain blocks. When an object such as a weighted pressure plate or daylight sensor is placed, hooked up to a line connected to a row of pistons, and slowly increased in power, The redstone seems to cut out for a split second, causing the next piston to get stuck in a position where it is both extended and retracted at the same time. Which pistons get stuck is 100% reproducible every time the machine is reset, but changes when the machine is moved or rotated.&lt;/p&gt;

&lt;p&gt;Please note that this is not a duplicate of &lt;a href=&quot;https://bugs.mojang.com/browse/MC-127&quot; title=&quot;Piston extended and retracted at the same time&quot; class=&quot;issue-link&quot; data-issue-key=&quot;MC-127&quot;&gt;&lt;del&gt;MC-127&lt;/del&gt;&lt;/a&gt;, as far as I can tell, as the pistons getting stuck seems to be a by-product of a bug with the redstone, not the actual bug I am reporting.&lt;/p&gt;</description>
                <environment>Windows 7 home premium, Service Pack 1&lt;br/&gt;
Java Recommended Version 7, Update 10&lt;br/&gt;
</environment>
        <key id="19158">MC-6486</key>
            <summary>Variable redstone strength causing strange update behavior</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="jeb">[Mojang] Jeb (Jens Bergensten)</assignee>
                                    <reporter username="zoshi235">asdf</reporter>
                        <labels>
                            <label>redstone</label>
                    </labels>
                <created>Mon, 7 Jan 2013 05:39:51 +0100</created>
                <updated>Sun, 6 Sep 2015 21:57:06 +0200</updated>
                            <resolved>Tue, 22 Jan 2013 14:06:43 +0100</resolved>
                                    <version>Snapshot 13w01a</version>
                    <version>Snapshot 13w01b</version>
                    <version>Snapshot 13w02b</version>
                                    <fixVersion>Snapshot 13w04a</fixVersion>
                                                        <votes>13</votes>
                                    <watches>1</watches>
                                                                            <comments>
                            <comment id="47877" author="zoshi235" created="Wed, 27 Feb 2013 01:56:17 +0100"  >&lt;p&gt;Please give a screenshot or video of it happening, showing with F3 what snapshot you&apos;re in.&lt;/p&gt;</comment>
                            <comment id="47873" author="bljat" created="Wed, 27 Feb 2013 01:46:12 +0100"  >&lt;p&gt;No it&apos;s not.&lt;/p&gt;</comment>
                            <comment id="47867" author="yut951121" created="Wed, 27 Feb 2013 01:06:05 +0100"  >&lt;p&gt;This is happening again in 13w07a &amp;amp; 13w09a&lt;/p&gt;</comment>
                            <comment id="39136" author="zoshi235" created="Tue, 22 Jan 2013 22:03:45 +0100"  >&lt;p&gt;Yeah! Go Jeb! Assuming it is in fact fixed and not just no longer reproducing in his end...&lt;/p&gt;</comment>
                            <comment id="36613" author="keithicus420" created="Mon, 14 Jan 2013 00:10:08 +0100"  >&lt;p&gt;Note: still present in 13w02b.&lt;/p&gt;</comment>
                            <comment id="36001" author="gcsx" created="Sat, 12 Jan 2013 15:55:35 +0100"  >&lt;p&gt;Added 3 screenshot of a mechanism proving this behavior.&lt;/p&gt;

&lt;p&gt;The two pistons receive inverted and synchronized power, making their arms to stagger.&lt;/p&gt;

&lt;p&gt;The first is the system once built, the second is then system swithed on and the last is the system switched off again.&lt;/p&gt;

&lt;p&gt;Notice the bug on the right piston.&lt;/p&gt;</comment>
                            <comment id="35996" author="gcsx" created="Sat, 12 Jan 2013 15:44:31 +0100"  >&lt;p&gt;Hi! I reproduced this bug and I found that it is not directly related to signal strength.&lt;br/&gt;
The problem is caused by some pistons retracting and expanding again, while an adjacent piston is extending, resulting in a situation similar to the one I have described for &lt;a href=&quot;https://bugs.mojang.com/browse/MC-6717&quot; title=&quot;Piston arm bug&quot; class=&quot;issue-link&quot; data-issue-key=&quot;MC-6717&quot;&gt;&lt;del&gt;MC-6717&lt;/del&gt;&lt;/a&gt; (two piston arms staggered).&lt;/p&gt;</comment>
                            <comment id="35828" author="nitrousspark" created="Sat, 12 Jan 2013 01:50:50 +0100"  >&lt;p&gt;i hate this bug&lt;/p&gt;</comment>
                    </comments>
                <issuelinks>
                            <issuelinktype id="10102">
                    <name>Duplicate</name>
                                                                <inwardlinks description="is duplicated by">
                                        <issuelink>
            <issuekey id="19486">MC-6717</issuekey>
        </issuelink>
                            </inwardlinks>
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                            <issuelinktype id="10103">
                    <name>Relates</name>
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            <issuekey id="11372">MC-127</issuekey>
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                <attachments>
                            <attachment id="17487" name="2013-01-06_23.29.28.png" size="387317" author="zoshi235" created="Mon, 7 Jan 2013 05:49:09 +0100"/>
                            <attachment id="17488" name="2013-01-06_23.29.38.png" size="358298" author="zoshi235" created="Mon, 7 Jan 2013 05:49:09 +0100"/>
                            <attachment id="17489" name="2013-01-06_23.33.58.png" size="406969" author="zoshi235" created="Mon, 7 Jan 2013 05:49:09 +0100"/>
                            <attachment id="17490" name="2013-01-06_23.35.56.png" size="451010" author="zoshi235" created="Mon, 7 Jan 2013 05:49:09 +0100"/>
                            <attachment id="17491" name="2013-01-06_23.36.05.png" size="507724" author="zoshi235" created="Mon, 7 Jan 2013 05:49:09 +0100"/>
                            <attachment id="18417" name="2013-01-12_15.48.04.png" size="974444" author="gcsx" created="Sat, 12 Jan 2013 15:55:35 +0100"/>
                            <attachment id="18418" name="2013-01-12_15.48.10.png" size="954506" author="gcsx" created="Sat, 12 Jan 2013 15:55:35 +0100"/>
                            <attachment id="18419" name="2013-01-12_15.48.15.png" size="929558" author="gcsx" created="Sat, 12 Jan 2013 15:55:35 +0100"/>
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