Is anyone able to tell me why I can no longer edit the "Description" property of a part (lets say the top of the list Sheetmetal part) inside the weldment cut list of the attached part?

This seems to happen at random and is driving me nuts! I can delete the Weldment cut list and re-create but that is a huge amount of work inside the drawing for this file, just so I can edit a piece of damn text!

Any clever person out there able to find a way to make this Weldment cut list return to working the way it is supposed to?

Many Thanks

Brian