Preview mode weirdness

[lpm]

This must be due to something simple, but my brain is taxed and I can’t figure this out right now. Problem: One layout will not display in preview mode -- all others display normally and I’m not sure what I did to this one. I also noticed that when I am on the layout in browse mode and go to File>Save/Send Record as… PDF is grayed out. Excel shows normally but PDF is grayed out. I hope you can help. TIA

[lpm]

Sorry, I didn't have any records in the table. When I entered one, everything worked fine. I need to quit for the day and go for a walk and get my mind off this db.