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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-1942] Lava remnants not dissipating after removing source block</title>
                <link>https://bugs.mojang.com/browse/MC-1942</link>
                <project id="10400" key="MC">Minecraft: Java Edition</project>
                    <description>&lt;p&gt;I was attempting to build a tower-like structure on which I intended to place source lava blocks at the top in such a manner that the lava would spread down the tower&apos;s sides. However, no matter what situation I try, when I remove the source lava block, the lava always stops dissipating at some point (usually on the floor) and I am left with lava which never disappears completely. I have attached my save folder for the world I was working on and left a sign with instructions.&lt;/p&gt;

&lt;p&gt;Other thoughts: Behavior of fluids has been very frustrating to all Minecraft players for a long time now and it would be great to see an improvement on it soon.&lt;/p&gt;</description>
                <environment>OS: Windows 7 Ultimate x64&lt;br/&gt;
Java: Version 7 update 9&lt;br/&gt;
</environment>
        <key id="13323">MC-1942</key>
            <summary>Lava remnants not dissipating after removing source block</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="3">Duplicate</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="finedaible">Yamaraj</reporter>
                        <labels>
                    </labels>
                <created>Fri, 2 Nov 2012 18:31:19 +0100</created>
                <updated>Wed, 3 May 2017 23:26:36 +0200</updated>
                            <resolved>Fri, 14 Dec 2012 13:52:56 +0100</resolved>
                                    <version>Minecraft 1.4.2</version>
                                                                        <votes>7</votes>
                                    <watches>3</watches>
                                                                            <comments>
                            <comment id="29080" author="blubberdiblub" created="Mon, 17 Dec 2012 17:34:20 +0100"  >&lt;p&gt;In the other issue, the comment refers to the wiki (which is community-run and not a 100% reliable source of information), which mentions that lava will eventually disappear when there are no source blocks - I do not doubt that.&lt;/p&gt;

&lt;p&gt;What we are seeing instead is that the lava creates new source blocks in certain circumstances (further down the lava stream) that were not created by the player and which obviously don&apos;t disappear by themselves and must be manually removed.&lt;/p&gt;

&lt;p&gt;That&apos;s what happens in the attached Sandbox savegame and it&apos;s also what I see a lot in my games.&lt;/p&gt;

&lt;p&gt;Anyway, we will probably not get any attention here, since this issue is marked as &quot;Resolved&quot;. And I&apos;m not 100% sure if the other issue (&lt;a href=&quot;https://bugs.mojang.com/browse/MC-4631&quot; title=&quot;Lava decay fails to schedule block update&quot; class=&quot;issue-link&quot; data-issue-key=&quot;MC-4631&quot;&gt;&lt;del&gt;MC-4631&lt;/del&gt;&lt;/a&gt;) is exactly the same, as its description seems a little vague to me.&lt;/p&gt;

&lt;p&gt;@Yamaraj maybe - as original reporter of the issue - you can reopen it and clarify that what we&apos;re experiencing isn&apos;t explained by the wiki?&lt;/p&gt;</comment>
                            <comment id="28874" author="adonis0" created="Mon, 17 Dec 2012 00:00:17 +0100"  >&lt;p&gt;Yes, it may be the same issue&lt;br/&gt;
However, if both are labeled as duplicates, then it won&apos;t be fixed.&lt;/p&gt;

&lt;p&gt;In the other it is called to be correct behaviour, however this is something that I, and probably most of the others who contributed to this, call to be a bug, or a part of the game that needs revisiting&lt;/p&gt;</comment>
                            <comment id="28726" author="banana478" created="Sun, 16 Dec 2012 04:12:45 +0100"  >&lt;p&gt;But it&apos;s the same issue.&lt;/p&gt;</comment>
                            <comment id="28725" author="finedaible" created="Sun, 16 Dec 2012 04:10:02 +0100"  >&lt;p&gt;I do not see how my bug report is &quot;resolved&quot;. The supposed &quot;duplicate issue&quot; (&lt;a href=&quot;https://mojang.atlassian.net/browse/MC-4631&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://mojang.atlassian.net/browse/MC-4631&lt;/a&gt;) has no relation with the problem reported by me.&lt;/p&gt;</comment>
                            <comment id="27181" author="blubberdiblub" created="Sat, 8 Dec 2012 16:36:23 +0100"  >&lt;p&gt;The point is that when you remove the placed lava again and it ebbs away along the contour it sometimes leaves lava source blocks (block ID 10) behind. Obviously, those will never go away unless manually removed. You can test that if you have SinglePlayerCommands (with WorldEdit included) and optionally WECUI. Put a selection around where the lava got stuck and use the //distr command. That will show you how many lava source blocks (ID 10) and stationary lava blocks (ID 11) are in the selection.&lt;/p&gt;

&lt;p&gt;However, as to &lt;em&gt;why&lt;/em&gt; it does that I can provide no insights.&lt;/p&gt;</comment>
                            <comment id="25615" author="eimo127" created="Thu, 29 Nov 2012 02:52:28 +0100"  >&lt;p&gt;this happened to me 3 days ago and the lava is stil there. even if I log out and come back later its still flowing there. I NEVER GOES AWAY!&lt;/p&gt;</comment>
                            <comment id="25606" author="finedaible" created="Thu, 29 Nov 2012 01:50:54 +0100"  >&lt;p&gt;Well, I&apos;ve left the game running for at least an hour or more with no lava disappearing.&lt;/p&gt;

&lt;p&gt;I do agree with Aiden though, the lava should at least disappear at the same rate it was generated.&lt;/p&gt;</comment>
                            <comment id="21213" author="adonis0" created="Tue, 13 Nov 2012 08:33:06 +0100"  >&lt;p&gt;the creation of lava flow blocks works perfectly, I think the fix is just working out how to do that in reverse.&lt;/p&gt;

&lt;p&gt;If it disappeared at the same rate and behavior that it appeared at, I believe most of us, if not all would be happy&lt;/p&gt;</comment>
                            <comment id="20901" author="lance001" created="Mon, 12 Nov 2012 04:01:31 +0100"  >&lt;p&gt;That is not a good fix. Lava and water behave completely differently in real life, but most importantly you&apos;d have lava rushing down hillsides instead of moving slowly. Not a great idea at all, in my opinion. &lt;/p&gt;</comment>
                            <comment id="20874" author="banana478" created="Mon, 12 Nov 2012 02:46:20 +0100"  >&lt;p&gt;The fix for this is probably just to unify water and lava physics (aside from burning, drowning, etc.).&lt;/p&gt;</comment>
                            <comment id="20860" author="adonis0" created="Mon, 12 Nov 2012 01:56:43 +0100"  >&lt;p&gt;Pouring water on it simply turns it into stone, which is not always the case that we want.&lt;/p&gt;

&lt;p&gt;I can confirm this also happens in survival, it created a huge mess that took hours to clean up, all because the one block didn&apos;t stop flowing after the source was removed.&lt;/p&gt;

&lt;p&gt;I would expect maybe 10s per block of flowing lava to disappear? About the same rate that it forms at.&lt;/p&gt;

&lt;p&gt;because in reality lava does flow much slower than water, but infinite propagation doesn&apos;t make sense.&lt;/p&gt;</comment>
                            <comment id="19785" author="caiobrz" created="Fri, 9 Nov 2012 00:56:46 +0100"  >&lt;p&gt;While I confirm this, I also confirm the wiki entry that it WILL disappear, it only takes some time to. But maybe it&apos;s taking too long?&lt;/p&gt;</comment>
                            <comment id="17281" author="kumasasa" created="Fri, 2 Nov 2012 19:18:49 +0100"  >&lt;p&gt;Yes, I know. Sorry.&lt;/p&gt;</comment>
                            <comment id="17266" author="lance001" created="Fri, 2 Nov 2012 19:03:06 +0100"  >&lt;p&gt;Kumasasa, this site isn&apos;t for coming up with workarounds. It&apos;s for reporting bugs. &lt;/p&gt;</comment>
                            <comment id="17263" author="kumasasa" created="Fri, 2 Nov 2012 19:00:38 +0100"  >&lt;p&gt;Pour water on it&lt;/p&gt;</comment>
                            <comment id="17258" author="738dave" created="Fri, 2 Nov 2012 18:48:58 +0100"  >&lt;p&gt;This bug is there for several versions. Would be nice to finally see it fixed.&lt;/p&gt;

&lt;p&gt;EDIT: It seems like big pieces of flowing lava act like source blocks. Flowing lava will disappear if it&apos;s &quot;cut in this fashion:&lt;br/&gt;
X = stone/gravel/whathever&lt;br/&gt;
L = flowing lava&lt;/p&gt;

&lt;p&gt;x|L|x|L|x&lt;br/&gt;
L|x|L|x|L&lt;br/&gt;
x|L|x|L|x&lt;/p&gt;

&lt;p&gt;Hope you get what I mean.&lt;/p&gt;</comment>
                            <comment id="17257" author="lance001" created="Fri, 2 Nov 2012 18:48:02 +0100"  >&lt;p&gt;From the wiki: &quot;Contrary to popular belief, lava cannot remain forever with out a source block. It may take several hours, but it will always disappear.&quot; It likely will just take a long time, so I would say this bug is &quot;By Design&quot;/&quot;Won&apos;t Fix&quot;.&lt;/p&gt;</comment>
                    </comments>
                <issuelinks>
                            <issuelinktype id="10102">
                    <name>Duplicate</name>
                                            <outwardlinks description="duplicates">
                                        <issuelink>
            <issuekey id="17159">MC-4631</issuekey>
        </issuelink>
                            </outwardlinks>
                                                        </issuelinktype>
                    </issuelinks>
                <attachments>
                            <attachment id="11878" name="Sandbox.zip" size="4921220" author="finedaible" created="Fri, 2 Nov 2012 18:31:20 +0100"/>
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