Is there something special done to this component such as assembly cuts or whatever? You could try to add the part to a test assembly and open it in a drawing to see if it functions correctly.
I have not run into limitation as yet with this function, but you may have found one.
Feel free to post the components; let us know the version it came from; and to know if it is from the full or academic version.
If you have maintenance, of course, open a support case and have PTC look at it too.
