[Bug]: 'Dragon Larva' crashes server if it hits you after you pick up a tombstone, 2nd ender dragon fight

[Daemris]

General Info

• I didn't added any mods
• I can reproduce this issue consistently in single-player
• I can reproduce this issue consistently in multi-player
• I have searched for this issue previously and it was either (1) not previously reported, or (2) previously fixed and I am having the same problem.
• I am crashing and can provide my crash report(s)
• I am using the latest version of the modpack

Your launcher

CurseForge

Modpack version

1.1

Describe your issue

If you die in the 2nd Ender Dragon fight, and then collect a tombstone, the next time a 'Dragon Larva' hits you the server will crash.
We've narrowed it down to collecting the tombstone. You can get hit any time before your death, or any time after your death, and the server will behave. This only happens if you're hit after you collect a tombstone. You do not have to die, only get hit once.

Steps to reproduce the issue

1. Start the 2nd Ender Dragon fight
2. Die
3. Collect your Tombstone
4. Get hit by a 'Dragon Larva
5. ?????
6. Profit

Additional Information

https://mclo.gs/JR6NhKB | https://mclo.gs/oHdUC1A | https://mclo.gs/D8G0sun

Three crash logs from the server.