Carlos Rico Adega

Umm, ok. I was testing on Maya 2023 so the python 2.x is ruled out. I tried on a fresh prefs Maya and getting the same error. The stack trace...

Could it be the numpy or scipy versions?

Yeah, same Maya, same machine, different versions of the tool (1.1.7 and 1.1.8), it really seems weird. Anyway, I'll let you know in case I find the issue. Thanks.