Minecraft version: 1.12.2
Forge version: 14.23.3.2673
Thaumcraft version: 6.1 Beta 10

Error:
"The game crashed whilst rendering screen
The game crashed whilst rendering screen
Error: java.lang.ArrayIndexOutOfBoundsException: 1"

"View Crash Report" does not seem to do anything for me.

Steps to reproduce: Selecting an item in the "Items that need to be crafted" on the lower left of the Thaumonomicon causes an immediate crash. Tested with the Thaumometer, the Vis Resonator, and the Castor's Gauntlet. The game crashes immediately before seeing any change. Viewing the recipe in the top right does not share this issue with these items, works as expected.

Also, the enchanted fabric (this time while using the recipe in the top right) was giving me this issue, but I can't seem to reproduce it now. It would let me view the recipe, but after a few seconds would crash with the same error. This was only the enchanted fabric recipe, this has never happened for the Thaumaturge's items in the same category.

Using the Twitch Launcher, although I downloaded Thaumcraft from the curseforge site, and Optifine HD from from their own site. Complete list of mods:

I first ran into the issue with the same list except for JEI, Waila, and the Waila expansion. I tested by removing Optifine (which I assumed was the culprit at first) and still was able to reproduce all of these crashes.

Appendment: The use of the recipe of Caster's Gauntlets (using the top right selection) is also crashing the game. The Vis Resonator, nor selecting the iron plate from there, have not been crashing the game.

I see now that this is the API for Thaumcraft, not the correct place to be reporting issues. I came here from https://minecraft.curseforge.com/projects/thaumcraft, the Source option brought me here. Next time I will use the Issues option. Man, you've really got a lot of work cut out for you.

Beta 11 seems to fix this issue if you use a new save. Not sure what parts cause it to remain on the old save, luckily this doesn't affect me.