[Crash] Better Dungeon and Better Stronghold structure overlapping and crashing

[pietro-lopes]

How to reproduce

Seed: -6615792431629871999

Mods required

• YungsBetterDungeons-1.21.1-NeoForge-5.1.4.jar
• YungsBetterStrongholds-1.21.1-NeoForge-5.1.2.jar

Run this command:
/tp @s -3680 90 -3696

Caused by: java.lang.NullPointerException: Cannot invoke "net.minecraft.world.level.Level.registryAccess()" because "this.level" is null
	at net.minecraft.world.level.block.entity.JukeboxBlockEntity.setTheItem:L129
	at net.minecraft.world.level.block.entity.JukeboxBlockEntity.splitTheItem:L120

https://gnomebot.dev/paste/mclogs/Y8x8HsG#L354

[pietro-lopes]

This crash happens because the block that will replace the Jukebox is a blockstate that contains NBT stuff, so it goes into this block code that calls Clearable#tryClear and later on the Jukebox it tries to call level without checking for null, which breaks the contract?

No null check

[pietro-lopes]

Any ETA on this? Another user is having exact same crash.