LastException during travel: VehicleLiabilities.py error
Product and Version
The Sims 4 (PC/Mac) — Patch 1.118.257.1220
Platform: macOS (Apple Silicon / Metal)
Mods/CC Installed? No. This occurred in a vanilla game with no Mods or CC.
Issue Summary
The game generates repeated LastException logs referencing vehicle_liabilities.py:307. The error states:
AttributeError: 'NoneType' object has no attribute 'can_transition_over_node'
I did not receive any in-game LastException popup, and the game did not crash, but I did notice slowdown and slight glitchiness before I found the logs. Since this occurred in vanilla, I believe this is a core game issue.
Steps to Reproduce
I do not know the exact trigger. I was playing normally in a new save with the latest pack installed when the slowdown and glitch occurred. I later discovered the LastException logs in my Sims 4 folder.
I suspect it may occur when Sims/NPCs attempt to use vehicles, or during routing while traveling/entering a lot. Exact reproducibility is unclear.
What I Expected to Happen
Sims should route or travel without generating errors.
What Actually Happened
The game produced repeated LastException logs (attached). The error trace shows a failure in vehicle routing logic during _get_close_to_deploy.
Error Trace Snippet (from log)
File "T:\InGame\Gameplay\Scripts\Server\vehicles\vehicle_liabilities.py", line 307, in _get_close_to_deploy
AttributeError: 'NoneType' object has no attribute 'can_transition_over_node'
Frequency
Happened multiple times in one session. Generated several LastException files in the same play session.
[CM - Edited - minor formatting]
Hello all,
If any of you are still encountering this on the latest game version (without mods), would you be willing to share your save file(s)?
If so, please send me a private message with a link to the file. Instructions can be found here: https://forums.ea.com/idea/the-sims-4-bug-reports-en/information-how-to-send-user-files-to-the-sims-4-team/5048472
Thanks!