Hello!
I’m having the same issue as in these two posts:
http://away3d.com/forum/viewthread/3880/
http://away3d.com/forum/viewthread/3585/
Both AWPBvhTriangleMeshShape and AWPConvexHullShape behave exactly as in the threads above.
I run both latest available Away3D (away3d-core-fp11_4_1_0_Alpha) and AWP (awayphysics-core-fp11-master).
This issue is a real blocker for my project.