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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>[MCPE-15044] Redstone lamps do not turn off immediately when unpowered</title>
                <link>https://bugs.mojang.com/browse/MCPE-15044</link>
                <project id="10200" key="MCPE">Minecraft (Bedrock codebase)</project>
                    <description>&lt;p&gt;When turning off power to a redstone lamp, there is a delay of a fraction of a second before the lamp actually goes dark.&lt;/p&gt;

&lt;p&gt;This is most noticeable in clock circuits involving redstone lamps, which no longer work correctly.&lt;/p&gt;

&lt;p&gt;The attached video demonstrates the issue. The piston in the video demonstrates that the clock circuit is indeed working correctly, however the redstone lamp does not turn off quickly enough to produce the expected flashing effect.&lt;/p&gt;

&lt;p&gt;I&apos;m also experiencing frequent crashes when I open a world and look at a clock circuit containing a redstone lamp like the one in the video.&lt;/p&gt;

&lt;p&gt;&lt;b&gt;Edit by &lt;a href=&quot;https://bugs.mojang.com/secure/ViewProfile.jspa?name=SuperGeniusZeb&quot; class=&quot;user-hover&quot; rel=&quot;SuperGeniusZeb&quot;&gt;SuperGeniusZeb&lt;/a&gt;:&lt;/b&gt; By using observers, you can clearly see that this behavior is in fact a functional delay, and not just a visual one. Hook up an observer to a redstone wire, and have that wire hooked up to a redstone lamp. Make another observer observe that lamp, and power the wire. Both observers will output a signal simultaneously. Now unpower the wire. Notice how the observer that is observing the redstone wire activates before the observer observing the lamp does.&lt;/p&gt;

&lt;p&gt;Also, I can&apos;t repro the crash mentioned in the original description, so I assume that was a separate bug that has long since been fixed.&lt;/p&gt;</description>
            <key id="142822">MCPE-15044</key>
            <summary>Redstone lamps do not turn off immediately when unpowered</summary>
                <type id="1" iconUrl="https://bugs.mojang.com/secure/viewavatar?size=xsmall&amp;avatarId=18903&amp;avatarType=issuetype">Bug</type>
                                    <status id="4" iconUrl="https://bugs.mojang.com/images/icons/statuses/reopened.png" description="This issue was once resolved, but the resolution was deemed incorrect. From here issues are either marked assigned or resolved.">Reopened</status>
                    <statusCategory id="2" key="new" colorName="default"/>
                                    <resolution id="-1">Unresolved</resolution>
                                            <reporter username="od1g1man">[MCPE Helper] Dylan K. Taylor</reporter>
                        <labels>
                            <label>redstone</label>
                            <label>redstone_lamp</label>
                    </labels>
                <created>Tue, 7 Jun 2016 13:22:06 +0200</created>
                <updated>Thu, 2 Jan 2025 19:25:20 +0100</updated>
                                            <version>1.17.30.22 Beta</version>
                    <version>1.17.11 Hotfix</version>
                    <version>1.14.25.1 Beta</version>
                    <version>1.14.1 Hotfix</version>
                    <version>0.15.0 Beta build 1</version>
                    <version>0.15.0</version>
                    <version>0.15.4</version>
                    <version>0.15.6</version>
                    <version>0.15.90.7</version>
                    <version>0.15.10</version>
                    <version>0.15.90.8</version>
                    <version>0.16.1</version>
                    <version>0.17.0.1</version>
                    <version>0.16.2</version>
                    <version>1.0.0.0</version>
                    <version>1.0.0.1</version>
                    <version>1.0.2</version>
                    <version>1.0.3</version>
                    <version>1.0.4.0</version>
                    <version>1.0.4.1</version>
                    <version>1.0.4.11</version>
                    <version>1.0.5.13</version>
                    <version>1.0.6.0</version>
                    <version>1.0.5.54</version>
                    <version>1.1.0.0</version>
                    <version>1.0.7.0</version>
                    <version>1.1.0.9</version>
                    <version>1.1.0.55</version>
                    <version>1.1.1.0</version>
                    <version>1.1.3.1</version>
                    <version>1.1.3.52</version>
                    <version>1.2.9.1</version>
                    <version>1.2.10.1</version>
                    <version>1.7.0.9 Beta</version>
                    <version>1.9.0</version>
                    <version>1.12.0</version>
                    <version>1.16.101 Hotfix</version>
                    <version>1.16.201 Hotfix</version>
                    <version>1.16.210</version>
                    <version>1.18.31</version>
                    <version>1.19.0</version>
                    <version>1.20.30</version>
                    <version>1.21.51 Hotfix</version>
                                                                        <votes>24</votes>
                                    <watches>6</watches>
                                                                            <comments>
                            <comment id="1164655" author="tryashtar" created="Wed, 18 May 2022 05:20:13 +0200"  >&lt;p&gt;Here&apos;s a comparison with java edition: &lt;a href=&quot;https://streamable.com/qnjavb&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://streamable.com/qnjavb&lt;/a&gt;&lt;br/&gt;
Java takes 0 ticks to power, 4 to depower&lt;br/&gt;
Bedrock takes 2 or 3 ticks to power, 6 to depower&lt;/p&gt;</comment>
                            <comment id="1060017" author="tryashtar" created="Sat, 21 Aug 2021 06:09:25 +0200"  >&lt;p&gt;Still an issue&lt;/p&gt;</comment>
                            <comment id="1059298" author="mega_spud" created="Fri, 20 Aug 2021 16:40:38 +0200"  >&lt;p&gt;&lt;b&gt;Thank you for your report!&lt;/b&gt;&lt;br/&gt;
However, this issue has been temporarily closed as &lt;b&gt;&lt;font color=&quot;#FF5722&quot;&gt;Awaiting Response&lt;/font&gt;&lt;/b&gt;&lt;/p&gt;

&lt;p&gt;Is this still an issue in the latest version? If so, please add a comment or update the affected version field.&lt;/p&gt;

&lt;p&gt;To make your bug report as effective as possible, please try and include the following steps to reproduce the problem:&lt;/p&gt;
&lt;blockquote&gt;
&lt;p&gt;&lt;b&gt;Steps to Reproduce:&lt;/b&gt;&lt;br/&gt;
1.&lt;br/&gt;
2.&lt;br/&gt;
3.&lt;/p&gt;

&lt;p&gt;&lt;b&gt;Observed Results:&lt;/b&gt;&lt;br/&gt;
&lt;em&gt;(Briefly describe what happens)&lt;/em&gt;&lt;/p&gt;

&lt;p&gt;&lt;b&gt;Expected Results:&lt;/b&gt;&lt;br/&gt;
&lt;em&gt;(Briefly describe what should happen)&lt;/em&gt;&lt;/p&gt;
&lt;/blockquote&gt;

&lt;p&gt;If your ticket does not look like the example given &lt;a href=&quot;https://help.minecraft.net/hc/en-us/articles/360049840492-Mojang-Bug-Tracker-Guidelines#h_01EKCG7QWCA1Z3MJN75C9JBMFC&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;here&lt;/a&gt;, then it&apos;s likely to be closed as incomplete.&lt;/p&gt;

&lt;p&gt;This ticket will automatically reopen when you reply.&lt;/p&gt;

&lt;p&gt;&lt;b&gt;Quick Links&lt;/b&gt;:&lt;br/&gt;
&#128211; &lt;a href=&quot;https://aka.ms/MCBugTrackerHelp&quot; title=&quot;How To Write Awesome Tickets! &#128175;&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;Issue Guidelines&lt;/a&gt; &amp;#8211; &#128172; &lt;a href=&quot;https://help.minecraft.net/hc/en-us/requests/new&quot; title=&quot;Account Support &#128377;&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;Mojang Support&lt;/a&gt; &amp;#8211; &#128231; &lt;a href=&quot;https://feedback.minecraft.net/&quot; title=&quot;Feedback and Suggestions &#9997;&#65039;&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;Suggestions&lt;/a&gt; &amp;#8211; &#128214; &lt;a href=&quot;http://minecraft.gamepedia.com/Minecraft_Wiki&quot; title=&quot;Minecraft Wiki &#127891;&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;Minecraft Wiki&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="946812" author="deefeecee" created="Wed, 17 Mar 2021 09:47:38 +0100"  >&lt;p&gt;Affects 1.16.210. Just checked on Java &amp;amp; although it exhibits similar behavior, it is still possible to flicker it with a 2 redstone tick clock. On Bedrock, the fastest clock that flickers the redstone lantern is a 3-RT clock.&#160;&lt;/p&gt;</comment>
                            <comment id="853786" author="deefeecee" created="Tue, 1 Dec 2020 02:42:09 +0100"  >&lt;p&gt;Same thing with JE. &lt;del&gt;Related to&#160;&lt;a href=&quot;https://bugs.mojang.com/browse/MC-172213&quot; title=&quot;Redstone components lose 1 tick of delay when (de-)activated by a player input&quot; class=&quot;issue-link&quot; data-issue-key=&quot;MC-172213&quot;&gt;MC-172213&lt;/a&gt;?&lt;/del&gt;&lt;/p&gt;</comment>
                            <comment id="416123" author="mistahtokyo" created="Wed, 1 Nov 2017 23:58:03 +0100"  >&lt;p&gt;Affects 1.2.5.15 (1.2.5 Beta Build 3).&lt;/p&gt;</comment>
                            <comment id="369518" author="zebulanstanphill@gmail.com" created="Sat, 25 Feb 2017 06:21:43 +0100"  >&lt;p&gt;By using observers, you can clearly see that this behavior is in fact a &lt;b&gt;functional delay, and not just a visual one.&lt;/b&gt; Hook up an observer to a redstone wire, and have that wire hooked up to a redstone lamp. Make another observer observe that lamp, and power the wire. Both observers will output a signal simultaneously. Now unpower the wire. Notice how the observer that is observing the redstone wire activates before the observer observing the lamp does.&lt;/p&gt;</comment>
                            <comment id="334283" author="zebulanstanphill@gmail.com" created="Mon, 10 Oct 2016 02:57:53 +0200"  >&lt;p&gt;Affects 0.15.10 &amp;amp; 0.15.90.8 (0.16.0 beta build 5).&lt;/p&gt;</comment>
                            <comment id="329902" author="zebulanstanphill@gmail.com" created="Fri, 16 Sep 2016 15:27:11 +0200"  >&lt;p&gt;Affects 0.16.0 Beta Build 4 (AKA 0.15.90.7).&lt;/p&gt;</comment>
                            <comment id="327076" author="zebulanstanphill@gmail.com" created="Sat, 27 Aug 2016 04:56:29 +0200"  >&lt;p&gt;Confirmed for 0.15.6. (Tested on Windows 10.)&lt;/p&gt;</comment>
                            <comment id="324165" author="zebulanstanphill@gmail.com" created="Mon, 8 Aug 2016 04:53:55 +0200"  >&lt;p&gt;Confirmed for 0.15.4. (Tested on Windows 10.)&lt;/p&gt;</comment>
                            <comment id="323762" author="aman4700" created="Mon, 8 Aug 2016 03:49:11 +0200"  >&lt;p&gt;Please respond and add the current version if you can reproduce this issue.&lt;/p&gt;</comment>
                            <comment id="317337" author="zebulanstanphill@gmail.com" created="Sat, 25 Jun 2016 15:18:32 +0200"  >&lt;p&gt;Confirmed for 0.15.0. (Tested in Windows 10.)&lt;/p&gt;</comment>
                    </comments>
                <issuelinks>
                            <issuelinktype id="10102">
                    <name>Duplicate</name>
                                                                <inwardlinks description="is duplicated by">
                                        <issuelink>
            <issuekey id="163455">MCPE-20017</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="170091">MCPE-21764</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="391224">MCPE-108607</issuekey>
        </issuelink>
                            </inwardlinks>
                                    </issuelinktype>
                            <issuelinktype id="10103">
                    <name>Relates</name>
                                                                <inwardlinks description="relates to">
                                        <issuelink>
            <issuekey id="213795">MCPE-37479</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="144071">MCPE-15607</issuekey>
        </issuelink>
                            </inwardlinks>
                                    </issuelinktype>
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                            <attachment id="118982" name="mobizen_20160607_121224.mp4" size="1740251" author="od1g1man" created="Tue, 7 Jun 2016 13:22:06 +0200"/>
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