Specialize > Technologies > Publish > Publish Package as UML Profile not working

[RonSonntag]

I have a <<profile>> Package that contains some extensions to add custom TAG values to Requirements. When I go to save it as a profile, the Publish Package as UML Profile cannot be selected. I also tried Design > Diagram > Edit > Advanced > Save As Profile... and that also won't work. I used to be able to just right-click on the package and save it as a UML Profile that could then be imported. What's going on?

[KP]

Is your diagram locked? EA saves the profile options (filename etc) in the diagram's properties so it needs to be unlocked.

[VKN]

For that option to be enabled, EA incorrectly expects a diagram to be displayed.
Sparx is aware of this issue.