I notice that I get BIND_POSES invalid warnings on any biped skinned meshes I import from 3dsmax 2013 x64. I’ve tried updating to the latest FBX plugins. I’ve also tried all the settings (and many variations of them) as suggested by the docs. I’ve tried several scale factors, resetting xforms, checking bone scales are 100% and remaking new bipeds.
This also happens on importing newly created bipeds with a simple sphere (edit poly or edit mesh) skinned to an entire bone (as a test).