I used *SB to form a selection box & then *HI to isolate my stair while edit my stair parameters. Now I can't unhide my building in 3D. I have tried the reveal hidden elements button many times & nothing happens & have also tried *HR many times as well. I can't figure out how to reveal my building now. Everything looks fine in plan, elevation & section. Help! I keep running into stupid trouble shooting like this that is preventing me from moving forward with learning Revit fully:\ See attached image.
