I'm not sure how this happened, but I think I deleted some references in my 3D model. Then when I opened my drawing, I have 3 asterisks (***) where a geometrical tolerance previously was. I have redimensioned everything and added new geometrical tolerances, but I cannot select, delete, or (it would appear) in any way modify the *** that is in my drawing. It does not appear to affect anything, except cause confusion for anyone who looks at the drawing. Has anyone experienced this before and how can it be remedied.