Okay, I reproduced the issue and it turns out to be a bug from back in WF5.
Worse, PTC has decided this is not worth fixing!
Anyone know how I can bring this up to the head of software quality assurance so I can let them know that this is unacceptable?
And can someone test this in Creo 3.0?... thanks
This is the SPR: https://support.ptc.com/appserver/cs/view/spr.jsp?n=2119668