Enumerated list using internal name instead of display name

The system was working fine until about 2 weeks ago.

I have a required attribute which calls an enumerated list.

When the value is selected from my create part window, the system puts in the internal name of the attribute from the list an NOT the display name.

If I place the dispay name in the cad model from an external list which matches my enumerated list (display name) and try and check in an object with the correct display name windchill throws an error and wants the internal name.

Is there a different way to do this action, or can anyone give me a fix for this issue.

I have read and attempted the fix as outlined in article Article#CS28440 without success.

Thanks