Alright, this issue has had me stumped for about 18 hours now. In the editor, I see one thing, but in game, I see what was in game about 5 steps back. I have made sure that I saved my work, tried exiting out of the editor and loading into the game, and nothing has fixed it. Here's two images to show what I am talking about.
You can barely see it in that image (Sorry...), but that is to the right of the room I have made. The floor stops, and I can fall through, etc. It doesn't show the walls or the doorway that I have clearly created in this next image.
What can I do to fix this? D:
Sorry if it's an easy fix, this is only my 2nd day doing this, so I don't know much just yet ><