Just letting you all know, that Plasticity Blender Bridge addon does not work on Blender 4.1.0. either. Tested it, and the problem was exactly the same as with BFA, which is based on Blender 4.1.0. Alpha.
You can see the model name on the Side Bar, but no data comes in, when pushing the Refresh button.
So, I guess the fix comes from Plasticity some day, after Blender 4.1.0. is officially released.