Sims will suddenly go 'Out of the World' to infinity

I have encountered the same issue/a similar issue.  Sims walk off the map and continue infinitely. Initially, I experienced this while using mods but, as I had a save one minute before, after reloading the game without mods, the issue occurred again immediately.

Steps to Reproduce:

1. Directed a Sim to use the bathroom at a lot in Granite Falls.
2. The Sim walks towards the bathroom, then suddenly turns around and faces a cardinal direction.
3. The Sim begins walking through walls, objects, and terrain directly, continuing infinitely without following the usual path.
4. The Sim eventually disappears from the map.
5. Right-clicking the Sim’s portrait brings the camera to the furthest point in that direction, showing no objects or Sims.

Expected Behavior:
The Sim should complete the action of using the bathroom, without walking through terrain or disappearing off the map.

Actual Behavior:
The Sim walks through objects and terrain, continuing indefinitely. Cancelling the action of using the toilet doesn't resolve the issue. Instead, the Sim queues up actions with objects on the lot (e.g., sleeping on a bed). While the Sim appears in a sleeping state, right-clicking on the portrait shows the Sim past the boundaries of the map, and the bed remains empty.

Additional Information:

• The issue occurred both with and without mods, so it seems to be unrelated to the mods used.
• The problem happens immediately after reloading the game without mods.

Hey 👋🏾 no I’m not I’m playing vanilla! I’ve never seen it happen before but I also do notice since the update that the festival in cityliving are overlapping etc as well so idk 🤷🏾‍♀️ once I reset her (my sim) it was normal again but I figured I better report it. I’ve never had that issue before 

My sim walked through her wall on the second floor of her house in the spice district and walked right into the river as you see in the pictures....i had to reset her or she would have just kept walking and walking. Mind you all she did was wake up and i told her to use the bathroom....?

(CM: Edited to remove ALL CAPS per rule)

Happened to me today. He kept walking until he stepped off the map and into outer space.  I finally had to "resetsim" and then use "teleport here". The funny thing was that his feet kept moving in Outerspace, but he went nowhere. 😆

This should have an active AHQ Bug report but I can't find it atm.

Same thing just happened to me! I asked her to clean up some dishes and she just started walking straight into the river, fully submerged, until she came out the other side and walked off the map. I did take a video because I found it so funny but I don't think I am able to attach it to a comment. I got her back by clicking on a random lot and making her visit that family. The only expansion packs I have are seasons and eco lifestyle.