Replace 3D model in library causes Crash

When I try to replace an 3D .obj in the Library. Storyboard Pro is crashing and the project file is currupted so I cant open the project again

Kind Regards Mads Juul

Sorry.I just found out I made a bad .obj export from blender. If I in Blender disabled all the checkboxes in the .obj export window. Storyboard pro will import fine