When dragging a physics constraint object into a billboard, the program will crash
STEPS TO REPRODUCE 1. Launch iClone 6 2. Navigate to Menu > Create > Billboard > FaceCam 3. Go to Modify > Physics > Constraint > Add Constraint, drag a random Constraint prop to Billboard 4. Drag a random prop to scene
ACTUAL RESULT Program crashes
EXPECTED RESULT It doesn't allow applying Physics Constraint to Billboard
