I have been having issues with my model not showing correctly when opened from a parent assembly. It looks like the attachment and then you can see the part correctly when rotated (second screen shot).
Then when opened again I get the screenshots with the prefix part1.
This has been happening from time to time and mainly is when the parts are opened within the parent assembly. But I have seen the same thing when opening directly from the file within the application.
Categories: Modeling and Assemblies, Assemblies