deleted objects remain in 3D views

[3rd_Floor]

 

I'm using Better Homes & Gardens Home Designer Suite 8.

 

I made a 3-storey (plus basement) design and I made a deck on the 2nd floor. After deleting the deck in the plan, it still shows up in the 3D views. Even when I save and re-load the plan, the 'ghost' deck still appears in 3D. Also, in 3D I'm unable to click on it to be able to delete it. I've had this same thing happen before. Any suggestions on how to deal with this? Thanks in advance.