So I'm having a strange issue...
Somehow today all the doors and cased openings dissapeared in my first floor plan.
They show up in the 3d views, sections, and second floor plan, but not in the first.
I have checked the visibilty settings, and they are all checked and correct, and I have checked the height of my floor cut, which is adequately at 4 feet high. Additionally, if I make the detail level "fine" then the casings will show up around the wall but the wall will not show the door cut.
The doors show up in a previous version of the model, so I'm not sure what has happened to cause the dissapearance.
Check the VG settings in your view under Doors.
Thank you for the help. I had already checked that, but for future reference my doors had changed to the wrong level. Easy fix. Thanks!