(FYI I'm playing on the chromium branch)
When I try to spawn NPCs in using the tool gun, it doesn't work. However, this issue is only located in the town square part of the map. Not the roads, church or buildings. I believe it's because on the town square, there is a slight inclination on the ground. When I try to spawn things in on this platform, the console says something about it being obstructed. Hope you can fix it, and if you can please give me some advice on how I could fix it if you can't.