Issue Description:

I was adding a recipe for cyclic bags of holding. Which used gilded string from silent gems, leather and a stable ender pearl from random things. However, when I went to hit save the entire game crashed and while I was looking at the config to make sure it went in, I wasn't touching it by hand, But I noticed notepad++ wanted to reload it and to my dismay the crash had taken the entire config with it. ._.'

Modpack and modlist is transcendence, again.
https://minecraft.curseforge.com/projects/transcendence

What happens:

GUI recipe adder self destructed and took the config with it when saving a new recipe.

What you expected to happen:

it to save and to show up in the config and I continue on.

Script used (Please Pastebin or gist your script, posting an unpasted or ungist'd script will automatically close this issue):

none anymore apparently. :V

crafttweaker.log file (Please Pastebin or gist your file, posting an unpasted or ungist'd file will automatically close this issue):

https://pastebin.com/qchQH8yD

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Affected Versions (Do not use "latest"):

• Minecraft: 1.12.2
• Forge: ending in 2705
• Crafttweaker: 4.1.9
• Using a server: No

Your most recent log file where the issue was present:

latest log
latest.log (too big to paste. was open in game for a while at that point. :V)

Crash log:
https://pastebin.com/EH5QUDsq