This is with mods installed but I previously had them removed and was receiving the same error message.
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<report><version>2</version><sessionid>fc6b13185dc51ea06a09106f</sessionid><type>desync</type><sku>ea.maxis.sims4_64.15.pc</sku><createtime>2026-05-16 19:51:34</createtime><buildsignature>Local.Unknown.Unknown.1.124.55.1030-1.200.000.708.Release</buildsignature><categoryid>developmental_milestone_tracker.py:1130</categoryid><desyncid>fc6b13185dc51ea06a09106f</desyncid><systemconfig/><screenshot/><desyncdata>Exception raised while processing zone spin up sequence: 'Object not found: 0x2a1d81e6' (KeyError: 'Object not found: 0x2a1d81e6') Traceback (most recent call last): File "T:\InGame\Gameplay\Scripts\Server\areaserver.py", line 130, in wrapped File "T:\InGame\Gameplay\Scripts\Server\areaserver.py", line 126, in finally_wrap File "T:\InGame\Gameplay\Scripts\Core\sims4\utils.py", line 157, in wrapper File "T:\InGame\Gameplay\Scripts\Core\sims4\utils.py", line 175, in wrapper File "T:\InGame\Gameplay\Scripts\Server\areaserver.py", line 383, in c_api_client_connect File "T:\InGame\Gameplay\Scripts\Server\sims\masked\v60\injector.py", line 26, in _wrapped_function File "T:\InGame\Gameplay\Scripts\Server\sims\masked\v60\zone_spin.py", line 100, in _turbolib_on_late_zone_load File "T:\InGame\Gameplay\Scripts\Server\zone.py", line 612, in do_zone_spin_up File "T:\InGame\Gameplay\Scripts\Server\zone_spin_up_service.py", line 1881, in update File "T:\InGame\Gameplay\Scripts\Server\zone_spin_up_service.py", line 924, in on_update File "T:\InGame\Gameplay\Scripts\Server\zone.py", line 1076, in on_all_sims_spawned File "T:\InGame\Gameplay\Scripts\Server\zone.py", line 1142, 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 274, in start_milestone_tracker File "T:\InGame\Gameplay\Scripts\Server\developmental_milestones\developmental_milestone_tracker.py", line 733, in _activate_available_milestones File "T:\InGame\Gameplay\Scripts\Server\developmental_milestones\developmental_milestone_tracker.py", line 565, in activate_milestone File "T:\InGame\Gameplay\Scripts\Server\developmental_milestones\developmental_milestone_tracker.py", line 315, in process_evaluation File "T:\InGame\Gameplay\Scripts\Server\developmental_milestones\developmental_milestone_tracker.py", line 1225, in send_all_milestones_update_to_client File "T:\InGame\Gameplay\Scripts\Server\developmental_milestones\developmental_milestone_tracker.py", line 1130, in _get_milestone_update_msg KeyError: 'Object not found: 0x2a1d81e6'rtim=0 Client Session Time: 29.69 Num Save Errors: 0 Num Load Errors: 0 Current Game State: 0x96d01090 LoadingScreenActiveFlag: 1 Origin Version: 13,700,0,6213 Modded: True SystemInfo: Windows 11 10.0.26200 GPU: NVIDIA GeForce RTX 3050 Ti Laptop GPU 27.21.14.6262, GUID: EE6EEC59-E742-11EF-8E37-088FC31E9209 </desyncdata></report>
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