Carrara is a very useful all-in-one tool, but with quite a few bugs. It also costs money, so a lot of those people go to Blender (if they can understand it), or DAZ 3D (if not).

The pros look down on Carrara so no joy there.

HOWEVER! When Octane for Carrara arrives (soon I hope), that might give this software a second life.

Either way I've invested 4.5 years into this project - too late to change now!