Does autorigcomponent's transformdriver require a special joints orientation? You can see that the skeleton flips in the attached file and there is some stretching going on. Just trying to recreate the Electra's example scene.

It looks like it's a requirement from APEX for the root joint to be oriented with Y axis along the child. Which is weird cus the orient joint nodeworks quite opposite orienting joints with Z as a main axis by default. It breaks stuff

That might be actually more of a bug. I will look into that.