Modpack version
0.5.2

Describe the bug
Trying to add an IF recipe, possibly with fluid (in this case Latex), when using the Just Enough Calculations calculator can cause the game to crash ("Saving World" and exiting). In my case it was looking up Efficiency Addon +2 and Simple Machine Frame.

Logs
Crash report: https://pastebin.com/ENjUsN6E

Thanks for the report, I relayed it :)

I can't really reproduce it. Does the crash always happen? But whatever, I can add some protection to prevent the crash.

To be honest I'm not sure how the Crafting Calculator works, couldn't really figure it out to test it 😅

This might've been fixed on IF's side as well 😄