helena_21_fs I apologize for the late reply; I've been away from the forums for a few days. Please try adding this mod:
https://www.patreon.com/posts/mod-milestone-81237568
If it helps, you may be able to remove it once you save your progress with it present.
helena_21_fs Please open Documents > Electronic Arts > The Sims 4 and delete any lastexception files you see. Try again to load the original household, in the original save if you'd like, and look for a new lastexception. If you find one, open it and delete its first line of text, then attach it to a reply here. Alternately, you can copy the text and paste it into your reply.
Please test with your Mods folder removed if you've added anything back to it, at least for now.
hey here it is. Just letting you know that i had to taskmanager force close the game because I got to an endless loading screen.
<?xml version="1.0" ?><root>
<report><version>2</version><sessionid>dd28422ffef27ec46853d759</sessionid><type>desync</type><sku>ea.maxis.sims4_64.15.pc</sku><createtime>2025-06-19 11:27:02</createtime><buildsignature>Local.Unknown.Unknown.1.115.253.1020-1.300.000.212.Release</buildsignature><categoryid>developmental_milestone_tracker.py:1111</categoryid><desyncid>dd28422ffef27ec46853d759</desyncid><systemconfig/><screenshot/><desyncdata>Exception raised while processing zone spin up sequence: 'Object not found: 0x858cd2f3' (KeyError: 'Object not found: 0x858cd2f3') 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 222, in c_api_server_tick File "T:\InGame\Gameplay\Scripts\Server\zone.py", line 511, in update File "T:\InGame\Gameplay\Scripts\Server\zone_spin_up_service.py", line 1757, in update File "T:\InGame\Gameplay\Scripts\Server\zone_spin_up_service.py", line 1389, in on_update File "T:\InGame\Gameplay\Scripts\Server\zone.py", line 740, in on_hit_their_marks File "T:\InGame\Gameplay\Scripts\Server\zone.py", line 1141, in _set_zone_state File "T:\InGame\Gameplay\Scripts\Core\sims4\callback_utils.py", line 158, in __call__ File "T:\InGame\Gameplay\Scripts\Server\developmental_milestones\developmental_milestone_tracker.py", line 1203, in send_all_milestones_update_to_client File "T:\InGame\Gameplay\Scripts\Server\developmental_milestones\developmental_milestone_tracker.py", line 1111, in _get_milestone_update_msg KeyError: 'Object not found: 0x858cd2f3'rtim=0 Client Session Time: 28.89 Num Save Errors: 0 Num Load Errors: 0 Current Game State: 0x96d01090 LoadingScreenActiveFlag: 1 Origin Version: 13,482,0,5995 Modded: False SystemInfo: Windows 11 10.0.22631 GPU: AMD Radeon(TM) Graphics 32.0.11020.10002, GUID: 47538BDC-93AE-11EE-9E07-A6F14A977E80 </desyncdata></report>
</root>
