Older truck drivers were more precise :)

Since it looked good in earlier versions, I assume it's an issue. I paid for the option to fill the area nicely right up to the retaining wall, but the trucks don't care, and the bulldozer hasn't been released in the game (yet). 🙂

Yeah that’s very annoying. To solve it for now. Place balancers on these spot and destroy them (building ghost is enough). The spots will be filled than.

For me, this only works for the Holy Mother Stacker to place her on another level. Unfortunately, it doesn't work on the retaining walls.

The original retaining walls that were put in game (when they could be placed over designations by default) filled in beautifully. This behaviour showed up with whatever changes that had to make to get to the current implementation. Only way I have to work around it is to now build another row of walls just inside this set , and remove the outer set, cleaning up with medium excavators as you go.

I how this gets addressed with the overhaul of mining designations (though I’m not sure if that will address the underlying terrain system that causes this issue).