Somebody want to take a look at this problem. The back left tenon has a chamfer cut rather than a tenon and the right tenon on the Back is wireframed. If I change the back left to BUTT is correct the right side. What the flip is going on now?
Damon gave me a call on this and it turned out to be his level of detail setting causing the part to look deteriorated. Upped the LOD to max and all looks correct for him.
This also occurred to another customer who spent about three days trying to find his shelf pin holes. Turn up the Level of Detail Display in Settings and Preferences and they were there all along.
So anytime you see sheet goods that look like it's just veneer and missing some of the core I'd look at this setting.