I have been having this error occur for a while, new and old saves alike. I have checked my mods and mccc for possible errors and still am having this issue. I have gone to the deaderpool discord ser...
Ideas
that one is from a modded game. I need you to remove all mods, delete all the exceptions you have and trigger it again.
Also please c/past the actual content and not a screenshot. It's really hard to read.
Sorry, I didn't realize how badly the image got sized down when I uploaded it!
Here is the error - same save file but mods removed.
<?xml version="1.0" ?><root>
<report><version>2</version><sessionid>9ef1a2ae36c43ba968cdfb5d</sessionid><type>desync</type><sku>ea.maxis.sims4_64.15.pc</sku><createtime>2025-09-19 18:46:59</createtime><buildsignature>Local.Unknown.Unknown.1.117.244.1020-1.300.000.220.Release</buildsignature><categoryid>tunable.py:882</categoryid><desyncid>9ef1a2ae36c43ba968cdfb5d</desyncid><systemconfig/><screenshot/><desyncdata>Exception while updating story progression service.: (IndexError: list index out of range) 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 54, in run_story_progression_action File "T:\InGame\Gameplay\Scripts\Server\story_progression\story_progression_actions\story_progression_action_relationship.py", line 87, in _save_participants File "T:\InGame\Gameplay\Scripts\Server\relationships\relationship_track.py", line 1160, in get_active_bit_by_value File "T:\InGame\Gameplay\Scripts\Server\relationships\tunable.py", line 882, in get_active_bit_by_value IndexError: list index out of rangertim=0 Client Session Time: 45.59 Num Save Errors: 0 Num Load Errors: 0 Current Game State: 0x96d01090 LoadingScreenActiveFlag: 1 Origin Version: 13,539,0,6052 Modded: False SystemInfo: Windows 10 10.0.19045 GPU: NVIDIA GeForce GTX 760 30.0.14.7444, GUID: F9C72C4C-7225-11EE-810E-AE1ADC307C60 </desyncdata></report>
<report><version>2</version><sessionid>9ef1a2ae36c43ba968cdfb5d</sessionid><type>desync</type><sku>ea.maxis.sims4_64.15.pc</sku><createtime>2025-09-19 19:33:19</createtime><buildsignature>Local.Unknown.Unknown.1.117.244.1020-1.300.000.220.Release</buildsignature><categoryid>tunable.py:882</categoryid><desyncid>9ef1a2ae36c43ba968cdfb5d</desyncid><systemconfig/><screenshot/><desyncdata>Exception while updating story progression service.: (IndexError: list index out of range) 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 54, in run_story_progression_action File "T:\InGame\Gameplay\Scripts\Server\story_progression\story_progression_actions\story_progression_action_relationship.py", line 87, in _save_participants File "T:\InGame\Gameplay\Scripts\Server\relationships\relationship_track.py", line 1160, in get_active_bit_by_value File "T:\InGame\Gameplay\Scripts\Server\relationships\tunable.py", line 882, in get_active_bit_by_value IndexError: list index out of rangertim=0 Client Session Time: 45.59 Num Save Errors: 0 Num Load Errors: 0 Current Game State: 0x96d01090 LoadingScreenActiveFlag: 1 Origin Version: 13,539,0,6052 Modded: False SystemInfo: Windows 10 10.0.19045 GPU: NVIDIA GeForce GTX 760 30.0.14.7444, GUID: F9C72C4C-7225-11EE-810E-AE1ADC307C60 </desyncdata></report>
</root>
