Hi - we are getting the following error when attempting to modify a class...

"Error loading file - record 1671. Shp1 or one of its members.Parent : Object class is invalid for this container"

I have opened the VCX as a table and looked at record 1671, the parent field references a pageframe which I know to be on the form. Everything appears to be the same as any other record for a shape control.
I also tried opening the class library in the Class Browser and cleaned the class library.

Any ideas as to what causes this and how to fix it would be appreciated.