Build Mode Issue With Random Stairs and Floor Tile
I didn't exactly know where to ask this, but I'm having this issue in build mode with a set of stairs. There's a set of stairs that was under my deck, I deleted the floor, and everything around it, but now there's this small patch of stairs that cannot be deleted, along with a deck in front of it and a random floor tile, which doesn't seem to have anything to do with the stairs. I used the move objects cheat, used the sledgehammer, tried deleting them by selecting them in buy mode and using control, nothing seems to work. I attempted to use the paintbrush to color the stairs and the floor that wouldn't delete, and it doesn't seem to even recognize them as objects. My sim actually walked through the small patch of stairs as well. I've been trying everything and I'm so confused and I worked really hard on this house and I don't want to have to delete it. Here is a picture of what I'm talking about.
Please help.