I am building custom venues in neighborhoods outside Starlight Shores. I don't know if I'm doing anything wrong when building, but the stage object in buydebug is staying it's checkered pattern rather than being covered in the desired floor tile.
For example, I have provided a photo of the stage found in one of the private venues (Brotherhood of Fine Fellows Hall, I believe) in Starlight Shores.
You can see that the stage blends in nicely with the surrounding floor tile.
Now here's what it looks like when I make my own custom stages venues:
The stage remains the checkered pattern and won't take the appearance of the floor tiles around it. It stays that way even in Live Mode and has happened in several neighborhoods. The issue in this photo is one of the lounges in Bridgeport, but it has also done this in every custom stage I made especially Central Park in Sunset Valley and Willowglen Amphitheatre in Twinbrook