HI 🙂 @BryonyRae
I tested it on a random lot in New Crest. I put up four walls, even not painted, and chose a white countertop.
In every other place of the room this countertop stood correctly. Only in the corner I could not drive it to the wall but In the reversed position it stood in the corner correctly.
I do not use CC only one mod Dreadpole MCC and I do not think the MCC has anything to do with it. but of course I can check it without this mod.
My game version is 1.46.18.1020
Immediately after the new patch, I had to reset the whole game folder for another reason so all old catche folders were gone but unfortunately I did this test in an old safe pasted to the game. I will repeat this test in the new safe after work, I will also check whether this phenomenon occurs in game mode or only from the level of City Management because I didn't do it..