Ok, reference the pictures below and the SW 2017 SP5 part that is attached. I am trying to move the face (offset) 0.2mm outward and it doesn't include all the geometry. But at 0.25mm, the geometry is included. In fact, I have found the sweet spot to be somewhere between 0.21mm and 0.22mm, as at 0.21mm, the geometry is skipped, but at 0.22mm, it is included again. I have tried putting the move face in both before and after the fillets that are on the internal corners of the geometry....with the same result.
I have a pretty easy work around: Move the face to 0.25mm and then just trim it back using a revolve cut. But I was wondering if anyone knew WHY 0.21mm doesn't work, but 0.22mm does.