Trying to generate terrain in certain areas makes the game completely exit out
Mods list: https://puu.sh/yy16B/0faa4cd93e.png

latest.log

The error stack trace doesn't refer to Streams/Farseek, only to CraftTweaker. Does this crash happen without CraftTweaker?

Could've sworn I wasn't having issues until I added Streams, but it does indeed seem to be crafttweaker

Thanks for letting me know! I'll close this issue and if you later find out that Streams is involved please re-open.