Steps to Reproduce the Crash

1. Open little tiles bag.
2. Chance to crash, not 100% of the time. (Seems to be an edge case)

Mod Pack URL (Optional)

https://www.curseforge.com/minecraft/modpacks/all-the-mods-9-to-the-sky

Mod Pack Version (Optional)

1.0.5

Extra Notes (Optional)

I will be reporting this to CreativeCore as well, and will link this issue on their repo and their issue here in a moment.
CreativeCore Issue: CreativeMD/CreativeCore#238

Crash Report

https://gist.github.com/thakyZ/6d1a30bcae577451f02321f889f2c3ba

Never mind, I figured out it is another mod all together. It is in fact Modern Fix. Disabling the one of the options (I'd still have to do some more testing) fixes it.