we encountered a problem where certain attributes from the rig get connected into the control - buffer shape nodes (picture attached). As i can see its from several IK/FK visibility switches.
As i understand these connections are accidental and shouldn`t be there.
The problem is, that i cant open the files anymore, when i leave the guide in the scene with the builded rig. The file crashes instantly when i try to open with Maya 2019/2020.
2018 opens fine surprisingly.
i guess something in the build code finds the wrong nodes and connects into them .