Big Cat versatile problem plus others

[Randomdays]

I'm having the probelm with big cat verastile and beyonder's wolf that after importing them into Blender, they no longer respond to their kfs after export. Even with no changes done to them, just putting them into blender does this. I've had good luck with Tommyboy's trek_t mesh, but his female versatile also has this issue.

Anyone have any idea on why or how to fix it? Are there any other 4 legged animals with kf's out there? Beyonder's horse doesn't fit, nor does the raptor or trex.