I am still having this issue as of January 14, 2018. It also corrupted my save file. My save has been extremely slow ever since moving to this VIII Landgraab apartment.
I'm having the same issue. What can be done to solve this, as this forum is from November and here I am in January experiencing the same problem. Can't delete certain walls on the inside of the apartment which I should be able to edit.
Same here, I just recently started getting this error when trying to build in the Zenview Apartments. Any time I want to build a wall that's perpendicular to an exterior wall, I get this error. Sometimes it works if I try it 2 or 3 more times, dragging the wall over from a different spot, but it's really annoying. I didn't have any issues when I last tried to build in 2 floor apartment several months back, so it must be caused by a fairly recent update. I really hope this is being fixed soon.
Mine also happens with the 701 Zenview apartments (or the 'karaoke legends' apartment with Miko Ojo, Darling Walsh and Akira Kibo), I have no mods and the only way to fix it is to bulldoze again. I haven't noticed it until February 7th, 2019 - my game is always up to date.
Same here, also with the Zen apartment.
Game fully up to date.
Placing a saved (non CC) lot from the library gives the Ops error.
Bulldozing the lot hangs up the entire game.
It's been months, is there still no solution? I have spent all day trying to work with this. It is ridiculous, and I feel that this problem is getting overlooked and ignored.