Hi NextworldVR
Sounds like you’ve ended up down a right old rabbit hole 
I’ll try to take a look when i get home later if no one else has sorted it, can’t promise a magic fix but I’ll have a go
in theory if your character is floating about in zero g using physics, bouncing should be the default behaviour so possibly just a simple setup problem. Caboose’s post seemed to point to that so i’ll try what he advised and let you know.
regards