Yes, this happens with new saves, no mods, I took my mods folder out and yes I always delete the localthumbcache file
lastException
<?xml version="1.0" ?><root>
<report><version>2</version><sessionid>ebeef602853a37c76952d4bd</sessionid><type>desync</type><sku>ea.maxis.sims4_64.15.pc</sku><createtime>2025-12-29 13:28:19</createtime><buildsignature>Local.Unknown.Unknown.1.106.148.1030-1.200.000.685.Release</buildsignature><categoryid>tunable.py:1495</categoryid><desyncid>ebeef602853a37c76952d4bd</desyncid><systemconfig/><screenshot/><desyncdata>[cjiang] Error occurred within the tag named '_forwarding' (value: V) (TunableMinimumLengthError) 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 167, in c_api_server_init_tick File "T:\InGame\Gameplay\Scripts\Core\sims4\core_services.py", line 164, in start_service_tick File "T:\InGame\Gameplay\Scripts\Core\sims4\service_manager.py", line 346, in start_single_service File "T:\InGame\Gameplay\Scripts\Core\sims4\tuning\instance_manager.py", line 192, in update_incremental_start File "T:\InGame\Gameplay\Scripts\Core\sims4\tuning\instance_manager.py", line 251, in _execute_gen File "T:\InGame\Gameplay\Scripts\Core\sims4\tuning\instance_manager.py", line 304, in _execute_func_and_calculate_time File "T:\InGame\Gameplay\Scripts\Core\sims4\tuning\instance_manager.py", line 681, in load_data_into_class_instances File "T:\InGame\Gameplay\Scripts\Core\sims4\tuning\serialization.py", line 678, in load_from_xml File "T:\InGame\Gameplay\Scripts\Core\sims4\tuning\serialization.py", line 724, in feed_node File "T:\InGame\Gameplay\Scripts\Core\sims4\tuning\serialization.py", line 762, in _load_node File "T:\InGame\Gameplay\Scripts\Core\sims4\tuning\serialization.py", line 822, in _load_tunable File "T:\InGame\Gameplay\Scripts\Core\sims4\tuning\tunable.py", line 1236, in load_etree_node File "T:\InGame\Gameplay\Scripts\Core\sims4\tuning\tunable.py", line 866, in load_etree_node File "T:\InGame\Gameplay\Scripts\Core\sims4\tuning\tunable.py", line 417, in load_etree_node File "T:\InGame\Gameplay\Scripts\Core\sims4\tuning\tunable.py", line 1236, in load_etree_node File "T:\InGame\Gameplay\Scripts\Core\sims4\tuning\tunable.py", line 866, in load_etree_node File "T:\InGame\Gameplay\Scripts\Core\sims4\tuning\tunable.py", line 417, in load_etree_node File "T:\InGame\Gameplay\Scripts\Core\sims4\tuning\tunable.py", line 1495, in load_etree_node sims4.tuning.tunable_errors.TunableMinimumLengthErrorrtim=0 Client Session Time: 178.19 Num Save Errors: 0 Num Load Errors: 0 Current Game State: 0x96d01090 LoadingScreenActiveFlag: 1 Origin Version: 13,616,1,6133 Modded: False SystemInfo: Windows 10 10.0.19045 GPU: Intel(R) HD Graphics igdumdim64.dll 20.19.15.4835, GUID: D7B78E66-61F1-11CF-6F61-7AA189C2D935 </desyncdata></report>
<report><version>2</version><sessionid>ebeef602853a37c76952d4bd</sessionid><type>desync</type><sku>ea.maxis.sims4_64.15.pc</sku><createtime>2025-12-29 13:28:19</createtime><buildsignature>Local.Unknown.Unknown.1.106.148.1030-1.200.000.685.Release</buildsignature><categoryid>tunable.py:1495</categoryid><desyncid>ebeef602853a37c76952d4bd</desyncid><systemconfig/><screenshot/><desyncdata>[manus] Exception while finalizing tuning for <class 'sims4.tuning.instances.urnstone_MournFriend_pets'>. (TunableMinimumLengthError) 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 167, in c_api_server_init_tick File "T:\InGame\Gameplay\Scripts\Core\sims4\core_services.py", line 164, in start_service_tick File "T:\InGame\Gameplay\Scripts\Core\sims4\service_manager.py", line 346, in start_single_service File "T:\InGame\Gameplay\Scripts\Core\sims4\tuning\instance_manager.py", line 192, in update_incremental_start File "T:\InGame\Gameplay\Scripts\Core\sims4\tuning\instance_manager.py", line 251, in _execute_gen File "T:\InGame\Gameplay\Scripts\Core\sims4\tuning\instance_manager.py", line 304, in _execute_func_and_calculate_time File "T:\InGame\Gameplay\Scripts\Core\sims4\tuning\instance_manager.py", line 698, in load_data_into_class_instances File "T:\InGame\Gameplay\Scripts\Core\sims4\tuning\serialization.py", line 678, in load_from_xml File "T:\InGame\Gameplay\Scripts\Core\sims4\tuning\serialization.py", line 724, in feed_node File "T:\InGame\Gameplay\Scripts\Core\sims4\tuning\serialization.py", line 762, in _load_node File "T:\InGame\Gameplay\Scripts\Core\sims4\tuning\serialization.py", line 823, in _load_tunable File "T:\InGame\Gameplay\Scripts\Core\sims4\tuning\tunable.py", line 1236, in load_etree_node File "T:\InGame\Gameplay\Scripts\Core\sims4\tuning\tunable.py", line 866, in load_etree_node File "T:\InGame\Gameplay\Scripts\Core\sims4\tuning\tunable.py", line 417, in load_etree_node File "T:\InGame\Gameplay\Scripts\Core\sims4\tuning\tunable.py", line 1236, in load_etree_node File "T:\InGame\Gameplay\Scripts\Core\sims4\tuning\tunable.py", line 866, in load_etree_node File "T:\InGame\Gameplay\Scripts\Core\sims4\tuning\tunable.py", line 417, in load_etree_node File "T:\InGame\Gameplay\Scripts\Core\sims4\tuning\tunable.py", line 1495, in load_etree_node sims4.tuning.tunable_errors.TunableMinimumLengthErrorrtim=0 Client Session Time: 178.19 Num Save Errors: 0 Num Load Errors: 0 Current Game State: 0x96d01090 LoadingScreenActiveFlag: 1 Origin Version: 13,616,1,6133 Modded: False SystemInfo: Windows 10 10.0.19045 GPU: Intel(R) HD Graphics igdumdim64.dll 20.19.15.4835, GUID: D7B78E66-61F1-11CF-6F61-7AA189C2D935 </desyncdata></report>
<report><version>2</version><sessionid>ebeef602853a37c76952d4bd</sessionid><type>desync</type><sku>ea.maxis.sims4_64.15.pc</sku><createtime>2025-12-29 13:32:21</createtime><buildsignature>Local.Unknown.Unknown.1.106.148.1030-1.200.000.685.Release</buildsignature><categoryid>constraints.py:1305</categoryid><desyncid>ebeef602853a37c76952d4bd</desyncid><systemconfig/><screenshot/><desyncdata>[manus] Error during initialization of service tuning_instance_manager. This will likely cause additional errors in the future. (AttributeError: 'Somewhere' object has no attribute '_enforce_social_group_routing_surface') Traceback (most recent call last): File "T:\InGame\Gameplay\Scripts\Core\sims4\tuning\instance_manager.py", line 283, in _execute_gen File "T:\InGame\Gameplay\Scripts\Core\sims4\tuning\instance_manager.py", line 304, in _execute_func_and_calculate_time File "T:\InGame\Gameplay\Scripts\Server\interactions\interaction_instance_manager.py", line 50, in on_start File "T:\InGame\Gameplay\Scripts\Server\interactions\interaction_instance_manager.py", line 105, in _use_animation_constraint_cache File "T:\InGame\Gameplay\Scripts\Server\animation\animation_ac_cache.py", line 160, in read_ac_cache_from_resource File "T:\InGame\Gameplay\Scripts\Server\animation\animation_ac_cache.py", line 188, in _merge_cached_constraints File "interactions\constraints.py", line 1305, in interactions.constraints.Constraint.get_enforce_social_group_routing_surface AttributeError: 'Somewhere' object has no attribute '_enforce_social_group_routing_surface'rtim=0 Client Session Time: 178.19 Num Save Errors: 0 Num Load Errors: 0 Current Game State: 0x96d01090 LoadingScreenActiveFlag: 1 Origin Version: 13,616,1,6133 Modded: False SystemInfo: Windows 10 10.0.19045 GPU: Intel(R) HD Graphics igdumdim64.dll 20.19.15.4835, GUID: D7B78E66-61F1-11CF-6F61-7AA189C2D935 </desyncdata></report>
<report><version>2</version><sessionid>ebeef602853a37c76952d4bd</sessionid><type>desync</type><sku>ea.maxis.sims4_64.15.pc</sku><createtime>2025-12-29 13:38:29</createtime><buildsignature>Local.Unknown.Unknown.1.106.148.1030-1.200.000.685.Release</buildsignature><categoryid>bucks_tracker.py:788</categoryid><desyncid>ebeef602853a37c76952d4bd</desyncid><systemconfig/><screenshot/><desyncdata>Exception raised while processing zone spin up sequence: type object 'BucksType' has no attribute 'BusinessPerkBucks' (AttributeError: type object 'BucksType' has no attribute 'BusinessPerkBucks') 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\zone.py", line 612, in do_zone_spin_up File "T:\InGame\Gameplay\Scripts\Server\zone_spin_up_service.py", line 1767, in update File "T:\InGame\Gameplay\Scripts\Server\zone_spin_up_service.py", line 261, in on_enter File "T:\InGame\Gameplay\Scripts\Server\sims\household_manager.py", line 90, in load_households File "T:\InGame\Gameplay\Scripts\Server\sims\household_manager.py", line 234, in load_household_from_household_proto File "T:\InGame\Gameplay\Scripts\Server\sims\household.py", line 1686, in load_data File "T:\InGame\Gameplay\Scripts\Server\bucks\bucks_tracker.py", line 688, in load_data File "T:\InGame\Gameplay\Scripts\Server\bucks\bucks_tracker.py", line 788, in is_bucks_type_allowed_to_load AttributeError: type object 'BucksType' has no attribute 'BusinessPerkBucks'rtim=0 Client Session Time: 178.19 Num Save Errors: 0 Num Load Errors: 0 Current Game State: 0x96d01090 LoadingScreenActiveFlag: 1 Origin Version: 13,616,1,6133 Modded: False SystemInfo: Windows 10 10.0.19045 GPU: Intel(R) HD Graphics igdumdim64.dll 20.19.15.4835, GUID: D7B78E66-61F1-11CF-6F61-7AA189C2D935 </desyncdata></report>
</root>