[1.19.2 Fabric] Drowned Guardian Jockey mixin will deadlock world generation. about sihywtcamd HOT 10 CLOSED

This bug has nothing to do with any other mod. The bug is specifically a mixin into drowned spawning code and calling a method that is not worldgen safe. Drowned saved as part of a structure nbt file will spawn during worldgen and trigger this mixin to run. That’s what the deadlock is. No need for lithium or whatever. They play no role in this

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Thank you for your additional information. I already knew this bug thanks to the issue though, so I will be working on fixing this as soon as I have time. The fix should come with next version =)

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Looks like all your jockey code are running the same method and all are unsafe for worldgen jockey spawning:

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Hello, thanks for your report! I guess it's the same issue I had with Unstructured on #36. At that time, I didn't understand what would be the issue as I was doing the same thing I found on Minecraft code but it seems I missed something. I will check again soon, thanks again!

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Hey so I've got the same bug when building myself a modpack.

Steps for reproduction:

• Load the modpack (attached in the end of this message)
• Create a world with seed "test", cheats: on, difficulty: hard. Leave all other settings as is, including the BetterX world type
• Start the game, you should spawn in a green area
• Upon spawning set gamemode to creative
• Enter the following lines to the chat, copying one by one and pressing enter after each:

#allowdiagonalascend true
#allowdiagonaldescend true
#allowparkour true
#goal 10000 10000 10000
#path

I think you know what is Baritone, but just in case: you should see that the bot confirms all these commands. You don't need the / at the start! Just send these messages into the chat.

• Observe how Baritone navigates you through the world for a while.
• Upon reaching the point shown on the screenshot, roughly about 3400, 72, 3400 you shall encounter this bug and find yourself at the spot shown in the screenshot

Modpack:
Journey's End Light-1.4.zip

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Oh great! Than that's the explanation.
Let's hope it's fixed asap then! 😄

EDIT: I've updated my comment and removed the irrelevant info!
Sorry, didn't really read your original post thoroughly at first, you basically explained it there already.

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I'm experiencing this as well in my modpack. Traced it back to this mod. Telepathic Grunt is entirely correct.

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Yeah. Just a notice: I've left the modpack and reproduction info because it's a 100% reproduction case.
Might be used for verifying the solution if needed.

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Thank you all for your help, this was really helpful =)
This is fixed on 1.20.1 (and newer) versions

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@charlyb01 I've found this issue due to a crash report on my mod page for Bygone Nether. When you mention fixing it for 1.20.1, do you not support previous versions? If not, I will list as an incompatibility with mine for those versions.

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