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Ideas
I received an LE while my game was paused, no sims were interacting with each other, and the only thing I was attempting to do was look at the relationship panel between my two sims. One sim was autonomously using the toilet, another sim was autonomously using the computer to chat, and the other sim was a sleeping infant.
After receiving this LE, I saved my game as a new file, and immediately after saving, a new, different LE popped up. No gameplay occurred during this time.
Prior to this gaming session, I was mod light (7 scripts, 17 packages including MCCC). After bugs from yesterday's patch update (2-19-26), I removed all mods except for one. The only mod that I currently have in my folder is TwistedMexi's Better Exceptions to alert me when an LE has occurred, since as far as I can tell, the LEs are not occurring through actions that I am performing through my sims.
Below is the summary of the exception I received after saving my game as a new file.
I have also attached the Last Exception text for this play session which was approximately 5 minutes from loading to exiting the save game.
BE is also a mod, so you need to remove that as well.
After doing that, please delete all the lastexceptions, lastcrash and localthumbcache file.
Go back to your game and trigger the error again.
Check the documents folder for new lastexceptions. Open that with a text editor and copy/paste the content to a post.
I attached and submitted the LE text when I created the post, but I guess attachments don't show up? I removed BE, but I was unable to recreate the exact LE since I believe it is something that is occurring outside of my actions. I did, however, receive a new LE from my attempt to recreate it, but I think it will have to be reported in a different post.
This is the LE text that I originally submitted. Please note, I have since removed BE:
<?xml version="1.0" ?><root><BetterExceptions><BEversion>v3.15</BEversion><WasBlank>False</WasBlank><TuningLoadFinished>True</TuningLoadFinished><BadObjectCC>False</BadObjectCC><Advice>Not available. More info may be in BE Report.</Advice></BetterExceptions><report><version>2</version><sessionid>86fb18895fee975069987e98</sessionid><type>desync</type><sku>ea.maxis.sims4_64.15.pc</sku><createtime>2026-02-20 10:47:40</createtime><buildsignature>Local.Unknown.Unknown.1.121.372.1020-1.300.000.234.Release</buildsignature><categoryid>tunable.py:882</categoryid><desyncid>86fb18895fee975069987e98</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 102, in _save_participants File "T:\InGame\Gameplay\Scripts\Server\relationships\relationship_track.py", line 1162, 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: 38.72 Num Save Errors: 0 Num Load Errors: 0 Current Game State: 0x96d01090 LoadingScreenActiveFlag: 1 Origin Version: 13,644,1,6152 Modded: True SystemInfo: Windows 11 10.0.26200 GPU: NVIDIA GeForce GTX 1660 Ti 32.0.15.9174, GUID: 2E211FAA-B204-11EF-9D37-E1D5B3E04AEB </desyncdata></report>
<report><version>2</version><sessionid>86fb18895fee975069987e98</sessionid><type>desync</type><sku>ea.maxis.sims4_64.15.pc</sku><createtime>2026-02-20 10:48:35</createtime><buildsignature>Local.Unknown.Unknown.1.121.372.1020-1.300.000.234.Release</buildsignature><categoryid>drama_node.py:1686</categoryid><desyncid>86fb18895fee975069987e98</desyncid><systemconfig/><screenshot/><desyncdata>Exception occurred while attempting to populate a repeated field: (AttributeError: 'str' object has no attribute 'id') Traceback (most recent call last): File "T:\InGame\Gameplay\Scripts\Core\sims4\utils.py", line 179, in wrapper File "T:\InGame\Gameplay\Scripts\Server\areaserver.py", line 219, in c_api_server_tick File "T:\InGame\Gameplay\Scripts\Server\scheduling.py", line 231, in simulate File "T:\InGame\Gameplay\Scripts\Server\elements.py", line 376, in _run File "T:\InGame\Gameplay\Scripts\Server\services\persistence_service.py", line 465, in call_save_game_gen File "T:\InGame\Gameplay\Scripts\Server\services\persistence_service.py", line 502, in save_game_gen File "T:\InGame\Gameplay\Scripts\Server\services\persistence_service.py", line 547, in _save_game_gen File "T:\InGame\Gameplay\Scripts\Server\services\persistence_service.py", line 616, in _fill_and_send_save_game_protobufs_gen File "T:\InGame\Gameplay\Scripts\Core\sims4\service_manager.py", line 537, in save_all_services File "T:\InGame\Gameplay\Scripts\Server\zone_manager.py", line 122, in save File "T:\InGame\Gameplay\Scripts\Server\zone.py", line 1781, in save_zone File "T:\InGame\Gameplay\Scripts\Core\sims4\service_manager.py", line 537, in save_all_services File "T:\InGame\Gameplay\Scripts\Server\drama_scheduler\drama_scheduler.py", line 647, in save File "T:\InGame\Gameplay\Scripts\Server\drama_scheduler\drama_node.py", line 1686, in save AttributeError: 'str' object has no attribute 'id'rtim=0 Client Session Time: 38.72 Num Save Errors: 0 Num Load Errors: 0 Current Game State: 0x96d01090 LoadingScreenActiveFlag: 1 Origin Version: 13,644,1,6152 Modded: True SystemInfo: Windows 11 10.0.26200 GPU: NVIDIA GeForce GTX 1660 Ti 32.0.15.9174, GUID: 2E211FAA-B204-11EF-9D37-E1D5B3E04AEB </desyncdata></report>
<report><version>2</version><sessionid>86fb18895fee975069987e98</sessionid><type>desync</type><sku>ea.maxis.sims4_64.15.pc</sku><createtime>2026-02-20 10:50:37</createtime><buildsignature>Local.Unknown.Unknown.1.121.372.1020-1.300.000.234.Release</buildsignature><categoryid>drama_node.py:1686</categoryid><desyncid>86fb18895fee975069987e98</desyncid><systemconfig/><screenshot/><desyncdata>Exception occurred while attempting to populate a repeated field: (AttributeError: 'str' object has no attribute 'id') Traceback (most recent call last): File "T:\InGame\Gameplay\Scripts\Core\sims4\utils.py", line 179, in wrapper File "T:\InGame\Gameplay\Scripts\Server\areaserver.py", line 219, in c_api_server_tick File "T:\InGame\Gameplay\Scripts\Server\scheduling.py", line 231, in simulate File "T:\InGame\Gameplay\Scripts\Server\elements.py", line 376, in _run File "T:\InGame\Gameplay\Scripts\Server\services\persistence_service.py", line 465, in call_save_game_gen File "T:\InGame\Gameplay\Scripts\Server\services\persistence_service.py", line 502, in save_game_gen File "T:\InGame\Gameplay\Scripts\Server\services\persistence_service.py", line 547, in _save_game_gen File "T:\InGame\Gameplay\Scripts\Server\services\persistence_service.py", line 616, in _fill_and_send_save_game_protobufs_gen File "T:\InGame\Gameplay\Scripts\Core\sims4\service_manager.py", line 537, in save_all_services File "T:\InGame\Gameplay\Scripts\Server\zone_manager.py", line 122, in save File "T:\InGame\Gameplay\Scripts\Server\zone.py", line 1781, in save_zone File "T:\InGame\Gameplay\Scripts\Core\sims4\service_manager.py", line 537, in save_all_services File "T:\InGame\Gameplay\Scripts\Server\drama_scheduler\drama_scheduler.py", line 647, in save File "T:\InGame\Gameplay\Scripts\Server\drama_scheduler\drama_node.py", line 1686, in save AttributeError: 'str' object has no attribute 'id'rtim=0 Client Session Time: 38.72 Num Save Errors: 0 Num Load Errors: 0 Current Game State: 0x96d01090 LoadingScreenActiveFlag: 1 Origin Version: 13,644,1,6152 Modded: True SystemInfo: Windows 11 10.0.26200 GPU: NVIDIA GeForce GTX 1660 Ti 32.0.15.9174, GUID: 2E211FAA-B204-11EF-9D37-E1D5B3E04AEB </desyncdata></report>
<report><version>2</version><sessionid>86fb18895fee975069987e98</sessionid><type>desync</type><sku>ea.maxis.sims4_64.15.pc</sku><createtime>2026-02-20 10:50:41</createtime><buildsignature>Local.Unknown.Unknown.1.121.372.1020-1.300.000.234.Release</buildsignature><categoryid>drama_node.py:1686</categoryid><desyncid>86fb18895fee975069987e98</desyncid><systemconfig/><screenshot/><desyncdata>Exception occurred while attempting to populate a repeated field: (AttributeError: 'str' object has no attribute 'id') Traceback (most recent call last): File "T:\InGame\Gameplay\Scripts\Core\sims4\utils.py", line 179, in wrapper File "T:\InGame\Gameplay\Scripts\Server\areaserver.py", line 219, in c_api_server_tick File "T:\InGame\Gameplay\Scripts\Server\scheduling.py", line 231, in simulate File "T:\InGame\Gameplay\Scripts\Server\elements.py", line 376, in _run File "T:\InGame\Gameplay\Scripts\Server\services\persistence_service.py", line 465, in call_save_game_gen File "T:\InGame\Gameplay\Scripts\Server\areaserver.py", line 452, in request_client_disconnect_gen File "T:\InGame\Gameplay\Scripts\Server\services\persistence_service.py", line 481, in save_to_scratch_slot_gen File "T:\InGame\Gameplay\Scripts\Server\services\persistence_service.py", line 502, in save_game_gen File "T:\InGame\Gameplay\Scripts\Server\services\persistence_service.py", line 547, in _save_game_gen File "T:\InGame\Gameplay\Scripts\Server\services\persistence_service.py", line 616, in _fill_and_send_save_game_protobufs_gen File "T:\InGame\Gameplay\Scripts\Core\sims4\service_manager.py", line 537, in save_all_services File "T:\InGame\Gameplay\Scripts\Server\zone_manager.py", line 122, in save File "T:\InGame\Gameplay\Scripts\Server\zone.py", line 1781, in save_zone File "T:\InGame\Gameplay\Scripts\Core\sims4\service_manager.py", line 537, in save_all_services File "T:\InGame\Gameplay\Scripts\Server\drama_scheduler\drama_scheduler.py", line 647, in save File "T:\InGame\Gameplay\Scripts\Server\drama_scheduler\drama_node.py", line 1686, in save AttributeError: 'str' object has no attribute 'id'rtim=0 Client Session Time: 38.72 Num Save Errors: 0 Num Load Errors: 0 Current Game State: 0x96d01090 LoadingScreenActiveFlag: 1 Origin Version: 13,644,1,6152 Modded: True SystemInfo: Windows 11 10.0.26200 GPU: NVIDIA GeForce GTX 1660 Ti 32.0.15.9174, GUID: 2E211FAA-B204-11EF-9D37-E1D5B3E04AEB </desyncdata></report>
</root>
really need you to remove all your mods. If an LE shows as modded, it might not get looked into because of that.
- Please follow these steps to test your game on vanilla game with no mods/cc
- Create a backup of your save game
- Move your mods folder to the desktop
- Delete the following files from your user folder.
- localthumbcache
- Any lastException Files
- Any LastCrash files.
- Test your save (you will loose all cc on the save but since you created a backup you can go back to that afterwards) and see if the same error occurs, then report back and repost the exception files.
Thank you for trying to help. As I mentioned in my reply,
I removed BE, but I was unable to recreate the exact LE since I believe it is something that is occurring outside of my actions. I did, however, receive a new LE from my attempt to recreate it, but I think it will have to be reported in a different post.
This is the LE text that I originally submitted. Please note, I have since removed BE:
I already removed BE. This text that I pasted was the original LE that I originally attached to the bug report. I was unable to recreate the LE that first occurred, but instead got a different LE, which I have then reported in a different post.
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