Transformer will not handle roughness maps and generates them on its own sometimes.
There are SO many errors with using the ini file in Transformer -- had I known there were going to be this many, I would have advised you not to implement this. Many, many folks are complaining to me privately and I don't know what to tell them.
Here are two files that will crash CC3 when using the ini and the maps. If you remove the roughness maps from Aiko it WILL work (but then it will somehow generate its own roughness maps?). Could you PLEASE explain this somehow? We desperately need feedback from the devs and we get nothing until the next release.