story_progression_action_relationship error

I'm experiencing the same, between 2am and 3am. Not sure if I'm pasting the right information below, so please let me know if you need anything else.

Exception while updating story progression service.:  (AttributeError: 'NoneType' object has no attribute 'id')
Traceback (most recent call last):
Caught and logged:

  File "T:\InGame\Gameplay\Scripts\Server\story_progression\story_progression_tracker.py", line 139, in update_arcs_gen
  File "T:\InGame\Gameplay\Scripts\Server\story_progression\story_progression_arc.py", line 166, in update_story_arc
  File "T:\InGame\Gameplay\Scripts\Server\story_progression\story_progression_chapter.py", line 248, in update_story_chapter
  File "T:\InGame\Gameplay\Scripts\Server\story_progression\story_progression_actions\story_progression_action_base.py", line 52, in run_story_progression_action
  File "T:\InGame\Gameplay\Scripts\Server\story_progression\story_progression_actions\story_progression_action_relationship.py", line 67, in _run_story_progression_action
AttributeError: 'NoneType' object has no attribute 'id'rtim=0
Client Session Time: 19.44   Num Save Errors: 0   Num Load Errors: 0   Current Game State: 0x96d01090   LoadingScreenActiveFlag: 1   Origin Version: 13,539,0,6052   Modded: True   SystemInfo: Mac OS X Version 26.0 (Build 25A5351b) GPU: Apple M2 Pro macOS Metal driver 0.0.0.0   Architecture: arm64    

I have the same issue. I do play with mods, but it seems to be unrelated to mods. I've been experiencing it for perhaps 6 months now. 

Hi. I'm so sorry that's happening to you too. May I ask if it's affecting more than one save and does it make the game unplayable? Or can you still play the game with this issue?

I am having the exact same problem, did you find a solution by any chance?

I'm experiencing the exact same issue on the PC version.
It doesn't affect game progress, but the notifications are annoying.

There seems to be some kind of problem with the save data. Starting a new game temporarily fixed it, but the bug reappears after playing for a while.

I have been getting same one for I swear a year now.  I can swat every error but this one. lol This bug is really a mystery.

I only play in one save, so it's affecting that one. I do have a test save that I only go to if I have a mod issue and it doesn't occur in that save. The game is still playable, but it is annoying get a last exception every night at the same time in the game. 

I am also having the same error. Every night between 2am - 3am my sims freeze up and I get the story_progression_action_relationship exception. It doesn't seem to be impacting other areas of my gameplay and if I wait a few seconds it clears and everything carries on. Playing on a fresh install so this is my first and only save in the game, error wasn't present previously. Happens regardless of which household I'm playing.

I have also been experiencing this same issue, but my game doesn't freeze. I moved a family to a new save to start over, but it eventually started happening again. There is always a <sim {long string of numbers & letters} listed as well when it happens for me. I can close it and the game continues, but it happens during culling times in the game. I was only able to make it stop by removing MC Command Center in my game and could leave the other mods I have in the game, so I assume it's linked with settings I have in MCCC I'm not sure what to adjust the settings to in MCCC to stop it from happening, but I don't want to completely eliminate MCCC from my saves. Did anyone ever figure out a solution or cause for this that maybe isn't MCCC related??