Went on a vacation with the Sigworths and Sims seemed to go up stairs fine. Switched to Judith Ward and she won't go up stairs to save her life (or at least, her bladder). I'm playing with an install ...
This doesn't appear to be just a mod issue as my stairs do not work either. In my game, it seems to happen in mostly bigger houses (or mansion) builds. So frustrating. I end up adding a hidden ladder. But that isn't always feasible and messes up the aesthetic of the homes' decor, lol. Also, it fun to watch them go upstairs on their own or grand stairway the player has added to the home. Not climb a ladder.
About The Sims 4 Gameplay Questions & Issues
Get help and answers to your gameplay questions and issues in The Sims 4.20,177 PostsLatest Activity: 9 minutes ago