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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-4433] Fallingsand spawners failing to save properly, and causing crashes</title>
                <link>https://bugs.mojang.com/browse/MC-4433</link>
                <project id="10400" key="MC">Minecraft: Java Edition</project>
                    <description>&lt;p&gt;Alllllrighty then, I know that I&apos;ve talked about FallingSand glitches before, but for real this time.&lt;/p&gt;

&lt;p&gt;1. Download and open the test world&lt;br/&gt;
2. Fallingsand spawner should (sort of) work&lt;br/&gt;
3. save and exit&lt;br/&gt;
4. open the text world again&lt;br/&gt;
5. game crashes&lt;br/&gt;
6. cats and dogs in love&lt;br/&gt;
7. total pandemonium&lt;/p&gt;

&lt;p&gt;What I think it is, is that the game fails to save the attributes of the spawner for some raisin.&lt;/p&gt;

&lt;p&gt;This is most disconcerting.&lt;/p&gt;</description>
                <environment>Windows 7, Java V7</environment>
        <key id="16943">MC-4433</key>
            <summary>Fallingsand spawners failing to save properly, and causing crashes</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="dinnerbone">[Mojang] Nathan Adams</assignee>
                                    <reporter username="axolotine">Adam Lyon</reporter>
                        <labels>
                            <label>crash</label>
                            <label>falling_block</label>
                            <label>save</label>
                            <label>spawner</label>
                    </labels>
                <created>Mon, 10 Dec 2012 22:30:04 +0100</created>
                <updated>Wed, 3 May 2017 23:49:07 +0200</updated>
                            <resolved>Tue, 15 Jan 2013 22:19:44 +0100</resolved>
                                    <version>Snapshot 12w49a</version>
                                    <fixVersion>Snapshot 12w50a</fixVersion>
                                                        <votes>0</votes>
                                    <watches>2</watches>
                                                                            <comments>
                            <comment id="37026" author="kumasasa" created="Tue, 15 Jan 2013 22:19:44 +0100"  >&lt;p&gt;re-regressed&lt;/p&gt;</comment>
                            <comment id="36881" author="kumasasa" created="Tue, 15 Jan 2013 00:18:30 +0100"  >&lt;p&gt;Regression&lt;br/&gt;
see &lt;a href=&quot;https://bugs.mojang.com/browse/MC-7496&quot; title=&quot;every time I go into my map and goes toward a House then there is crash&quot; class=&quot;issue-link&quot; data-issue-key=&quot;MC-7496&quot;&gt;&lt;del&gt;MC-7496&lt;/del&gt;&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="27699" author="axolotine" created="Tue, 11 Dec 2012 04:18:52 +0100"  >&lt;p&gt;Normally I would agree with you, but recently it was added so that you could modify the data of the spawner and spawn not just sand, but any block as a semi-feature. Why add a feature if you&apos;re just going to make it obsolete later?&lt;/p&gt;</comment>
                            <comment id="27686" author="nerdyboy6057" created="Tue, 11 Dec 2012 03:06:15 +0100"  >&lt;p&gt;Custom spawners are a very problematic element of Minecraft, as they usually require the use of third-party applications to obtain them.&lt;/p&gt;

&lt;p&gt;Although it is apparent that Minecraft is very insensitive to third-party modifications and elements, the use of vanilla elements to illegitimately achieve something that is naturally occurring or pivotal is of a high risk. That is, spawners &apos;spawn&apos; entities, but are intended to spawn naturally and to spawn mob entities. This means that it is not very much of a risk to create a spawner that spawns pigs, for example, but it is of risk to spawn &apos;artificial&apos; entities. These are block entities that are only used by the game to represent something and are not an element in itself. Hence, without a solid element to cause something, artificially creating the cause of an event without raising it is very risky.&lt;/p&gt;</comment>
                            <comment id="27678" author="banana478" created="Tue, 11 Dec 2012 02:19:05 +0100"  >&lt;p&gt;I got Entity ID 46872 in my crash in 12w49a.&lt;/p&gt;</comment>
                            <comment id="27677" author="banana478" created="Tue, 11 Dec 2012 02:14:27 +0100"  >&lt;p&gt;Which raisin?&lt;/p&gt;</comment>
                            <comment id="27659" author="axolotine" created="Mon, 10 Dec 2012 23:34:44 +0100"  >&lt;p&gt;The point is, it works properly in 1.4.5, however it does not in 12w49a.&lt;/p&gt;</comment>
                            <comment id="27655" author="kumasasa" created="Mon, 10 Dec 2012 23:27:58 +0100"  >&lt;p&gt;I did.&lt;br/&gt;
Tested your world. &lt;br/&gt;
Got&lt;/p&gt;
&lt;blockquote&gt;
&lt;p&gt;Details:&lt;br/&gt;
	Entity Type: FallingSand (px)&lt;br/&gt;
	Entity ID: 14512&lt;/p&gt;&lt;/blockquote&gt;</comment>
                            <comment id="27653" author="axolotine" created="Mon, 10 Dec 2012 23:09:56 +0100"  >&lt;p&gt;Can you read my whole post, please?&lt;/p&gt;</comment>
                            <comment id="27647" author="kumasasa" created="Mon, 10 Dec 2012 22:46:36 +0100"  >&lt;p&gt;You did it again:&lt;/p&gt;
&lt;blockquote&gt;
&lt;p&gt;Entity Type: FallingSand (px)&lt;br/&gt;
	Entity ID: 65&lt;br/&gt;
	Name: Falling Block&lt;/p&gt;&lt;/blockquote&gt;</comment>
                    </comments>
                <issuelinks>
                            <issuelinktype id="10102">
                    <name>Duplicate</name>
                                                                <inwardlinks description="is duplicated by">
                                        <issuelink>
            <issuekey id="21607">MC-8646</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="16914">MC-4406</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="17044">MC-4519</issuekey>
        </issuelink>
                            </inwardlinks>
                                    </issuelinktype>
                            <issuelinktype id="10103">
                    <name>Relates</name>
                                                                <inwardlinks description="relates to">
                                        <issuelink>
            <issuekey id="20292">MC-7496</issuekey>
        </issuelink>
                            </inwardlinks>
                                    </issuelinktype>
                    </issuelinks>
                <attachments>
                            <attachment id="15132" name="crash-2012-12-10_00.49.10-client.txt" size="3629" author="axolotine" created="Mon, 10 Dec 2012 22:30:04 +0100"/>
                            <attachment id="15131" name="fallingsand test world.zip" size="116749" author="axolotine" created="Mon, 10 Dec 2012 22:30:04 +0100"/>
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