See attached file, mapping is destroyed when the vertices are transformed. Exporting the object and reimporting fixes this, and after that vertices still can be transformed while keeping the mapping in tact.
BUT: after running UVEditor on that object again, transforms are no longer possible without destroying the mapping
Hi Gijs - thanks, I see this. @Gijs - the mapping is from UVEditor, correct?..hmmm. The mapping widget does not get transformed with the object. is what it looks like (MappingWidget command).