Re: Open Staircase Not Displaying Properly
What you show in your pics is a bit strange. It looks like the tile edges aren't going away. Given the shapes of them, I have a suggestion for you that you may not have tried. A bit hard to explain.
Check the shape of area where there are no tiles to see if it matches the opening. From the pics, it looks like there are more than one room in that space. You might have restore the floor to do that. If there are multiple adjacent spaces, see if you can make it one space that matches the opening using the wall tool. That should move any tile edges to the perimeter. Then delete the floor again. You might have to delete the ceiling below too.
If that doesn't work, would you be willing to upload the lot to the gallery? I or another helper will take a look at it and see if we can help you fix it.
Hope this helps.