-Versions
Aether 2 - Highlands Update - 0.3.0

abyssalcraft - 1.10.4

abyssalcraft integration - 1.11.3

-How to reproduce

1. spawn J'zahar and do mob battle with some mobs

2. crash happens in random time and when he use the black hole skill, it must crash

-Crash Log
https://gist.github.com/rebarakuk/3b288e7ff8fac4ea8dec40850e05e269

We can solve it with abyssalcraft config.
In the config,

Dimension IDs added to this list won't be used as potential destinations for black holes created by J'zahar.

I:"Reality Maelstrom Blacklist" <

If you write the aether 2 dimension ids (the aether 2 has 2 dimensions), you'll solve it