RSART Hang when moving attributes/operations in class diagrams

Class diagrams allow the user to move attributes & operations from one
class to another. If this is done (e.g. to promote an operation from a
class to its parent class), the tool hangs. The Move Element dialog box
is displayed and reports "Performing changes..." with a progress bar
that stalls at about 90% complete. Task Manager then has to be used to
terminate RSART.

The user believes he ran Load UML Models prior to attempting the move.

I attached a task trace the user made before killing the tool and
restarting.

The tool should not hang in these circumstances. Additionally, is
there an option to promote a function into a parent class via right
click, similar to how we can redefine an operation from a parent class
into a derived class?

From IBM:
"This is an ER for a new feature that would allow moving attributes and
operations between classes in an easier way that does not involve
refactoring"

From me:
The ability is already there and usually works. It sometimes crashes
the
tool, hence the PMR. Is this still an enhancement request? I consider
a
defect existing functionality that is broken, but if development
disagrees
I will open an RFE. Let me know, thanks!

From IBM:
Yes, make RFE.

Refer to PMR for attached dump files.