This error pop up despite no other menu is open and has to be closed 4 times. The pop up happens whenever i try to access the property menu for a product. Don't know if i did something to make it mad. Was trying to edit the dim. location in part properties.  

fix attempts:

1. Closing the room and re-open didn't fix it. Unsuccessful.

2. Closet room and open another room.  Unsuccessful.