Describe the bug

Mined a block with memory stick, game crashed.

Might be caused by vein miner since I was vein mining.

How to reproduce the bug

1. Have some xp in memory stick
2. Have xp collection off
3. Vein mine some blocks (I mined cracked stone bricks) using the memory stick

Expected behavior

For the game to not crash.

Additional details

Enigmatica 6 Expert modpack

Which Minecraft version are you using?

1.16

Which version of PneumaticCraft: Repressurized are you using?

1.16.5-2.15.8-324

Crash log

https://gist.github.com/Tazmondo/1b4b32ac46f3f5f4a01ea95ff1d2bf66

Couple of things I don't get about this report:

1. If XP collection was off, the method in question (where the crash occurs) could not possibly be called. That method is specifcally only called when XP collection is enabled. Are you sure XP collection was actually off?
2. The method is called from an inventory tick handler, not when blocks are broken.
3. Most importantly: you're using Java 15, which isn't supported with MC 1.16. Please test if this occurs with Java 8.

I'm unable to replicate the bug since moving to java 8, sorry for wasting your time.