Describe the bug
Apparently there's a clientside crash between Placebo, AE2 and Thermal, it's trying to output something from AE2 via Thermal and then it screws up. Believe it's the certus quartz crystal.

To Reproduce
Can provide the server and client pack.

Expected behavior
Normal behavior.

Additional context

Environment

• Environment:
  https://gist.github.com/strivenous/7f28299d7490b27eaf9473c5e1663ec3
  can't join any server or world with AE2, so I can't force crash.

forgot to link the crash: https://gist.github.com/strivenous/4ca50ee2817b46a854f7df12bc0130a8

tried to disable fast shapeless, no success

no success with both client and server side fastshapeless disabled

I don't see AE2 in the stack trace anywhere. If the same crash continues without Placebo removed, post the new crash report.

I don't see AE2 in the stack trace anywhere. If the same crash continues without Placebo removed, post the new crash report.

java.util.concurrent.ExecutionException: java.lang.IllegalStateException: Recipe thermalfoundation:material_97 (shadows.placebo.util.FastShapelessRecipe@63be3a69) produces unregistered item appliedenergistics2:material (ItemMaterial[material])

Dont know if its AE2 fault or Placebo doing something

Heh. I was quite careful to say "in the stack trace", not 'the exception message', just to ward off that very objection.

The only (non-MC) code that is mentioned is Placebo. As such, my suggestion remains to remove Placebo. If it still crashes, post a new crash report.

Based on the crashlog placebo seems to register an invalid recipe with at least one missing item. Most likely something they have to fix.