We've merged a bunch of threads reporting this issue together. It would be good to try and come up with the steps leading to this.
For those experiencing it:
It's affecting all wall painting options including wallpaper, tiles, etc.
I'm having this problem on 20 culpepper house
Doesn't appear any different on the map, looks normal
I had just loaded into my save file and wanted to update my childs bedroom from toddler to child
I wasn't using any mods that affected building at the time, and I removed all mods anyway to see if it was causing a problem
just to note, it's only affecting certain portions of the apartment, not the apartment as a whole, im also having problem laying the floor down with it saying the same thing "cannot place due to fixed object"
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