-9' terrain region and road down to -11' region chief is adding some -8 in between not sure why?

[cbucks]

I have an elevation region that is -9' and an elevation region that is -11' and a driveway between the two with the one side a retaining wall and the other side a foundation wall. For some reason chief is adding a -8 region in between and a lot of little swirls. Please see attached photo. I highlighted the elevation regions in Blue and I think I snapped everything in the region against the walls

[dshall]

3 hours ago, cbucks said:

I have an elevation region that is -9' and an elevation region that is -11' and a driveway between the two with the one side a retaining wall and the other side a foundation wall. For some reason chief is adding a -8 region in between and a lot of little swirls. Please see attached photo. I highlighted the elevation regions in Blue and I think I snapped everything in the region against the walls

For the fun of it, drag your terrain break through the wall into that void space since and see what you get