Ideas
Keksmonster1994
3 months agoNew Spectator
I have the same problem. And no, I do not use any CC or mods.
However, changing the roof is working if I only change one thing (the size in only one direction for example), then travel with my sims and if I return the change is applied even though it said "Not Expanded to Ops" earlier. This is not an ideal solution if you want to make interesting roof, as it takes a long time to travel back and forth with your sim.