At elevation 39, there is a cavern with rock storage, a smelter, and a stone worker's workshop. Bedrooms line the perimeter. On the left-hand side, the top-most bedroom belongs to Minkot Rodermuthkat, messenger. I want to replace that bedroom with a well. I click the zone and unassign the zone. All is well for a bit until I guess Minkot wants to catch some winks, then the game crashes.

I tried running in native 1920x1080, but that did not save me.

Steam version v50.03