This has been a problem for years!
When the floor is sloped, the pattern get's all wonky. Placing a filled region on top is a dumb way of doing it, if the profile change, you have to go update all the filled regions. We prefer to use the live model and not put a band-aid on top.
![ATran_1-1591974197700.png ATran_1-1591974197700.png](https://forums.autodesk.com/t5/image/serverpage/image-id/783015i9C598060A560DB40/image-size/medium?v=v2&px=400)
Autodesk please fix!!