No crash logs or anything sadly, just gets stuck at 100% when making a new world, works completely fine without the mod in my pack, or when I select an already created world to play on.

I have narrowed this down to where it happens from my side, but no idea why it happens. Will attempt a fix in the next version, but I can't guarantee it will work.

Version 1.0.1 is out and hopefully fixes the issue. I could not reproduce the deadlock reliably, but I haven't been able to get it with the updated version. If it works for you after updating, let me know and I will close the issue.

Will do

Yeah works fine now, Thanks for fixing it!

Entity.kill() will call LivingDeathEvent on forge, which will cause deadlocks if a mod attempts to perform some action that requires accessing the world. There is a function that bypasses the kill and directly removes the mob, though the name currently eludes me.