[FIXED] Cut off stair railing at half walls on even fundament height

The railings doesn't snap to the half wall, the railing-post/newel, that is automatically placed at the top stair-step, is exchanged for the half wall (presumably because they compete about the space). One workaround is to elongate the room, and use that part to place the half walls on, then the railings snap to them.

Railings don't snap:

.

Railings does snap:

EDIT: Was able to get them to snap, but don't know why. What I did was exit the game; delete caches; open the save; build up to four levels with stairs, which snapped to the half walls; erase all the levels and try again on the ground level:



I tried to replicate the same steps in another new folder, but was unsuccessful in getting them to snap there.

EDIT 2: It is, like said, very random. I found a workaround that worked for me: if the railings don't snap to the half walls at the first try, I dragged the house foundation down below ground level (erasing the stair at ground level); and dragged the foundation up again (a couple of times); and then put back the stairs and the railings - which snapped to the half walls. Sometimes I had to  redo that routine a couple of times before I got the railings to snap. Tried in a new folder every time.