I filled a custom Inventory Generation Component Tag, but I can't find a custom Inventory Generation Tag to put it into.
Versions: MC 1.11.2, RC 1.4, IvToolkit 1.3.3

Did you enter a group id? Can you screenshot your inventory generator's gui screens?

I tried again and now there is one. It must have been the restart or maybe I missed the ID like you said. Thanks for the help.

I hope it's not some kind of creative menu caching. That would be a problem for inventory generation tags in general. I'll check it out either way.