In the building editor whenever I try to place a wall column on the ground adjacent to the top side of a cliff, I have an application crash to Windows.
I have tried it twice. Both times I was using default wood column and I changed wall color to “wooden.”
EDIT: Okay, I found out to replicate it, you need to be in wall build mode (hold shift) not just placing a single column.
Workaround: Place a single column next to the cliffside, then place another while holding shift adjacent to the first.