I got the same bug with no mods installed except for TMex Better Exception which I installed to monitor the LE.
This is the LE I get:
Exception when applying action <GraduationUpdateSims ParticipantType.Actor> for loot loot_HSExit_AddGraduation(loot_actions=(<GraduationUpdateSims ParticipantType.Actor>, <GraduationUpdateSims ParticipantType.Actor>), run_test_first=False, tests=CompoundTestList([(TraitTest(apply_thresholds_on_individual_basis=True, blacklist_trait_types=frozenset(), blacklist_traits=(<class 'sims4.tuning.instances.trait_HSExit_Dropout'>, <class 'sims4.tuning.instances.trait_HSExit_Expelled'>, <class 'sims4.tuning.instances.trait_HSExit_Graduate_Early'>), num_blacklist_allowed=0, num_whitelist_required=1, subject=ParticipantType.Actor, tooltip=None, whitelist_trait_types=frozenset(), whitelist_traits=()),)])) (AttributeError: 'int' object has no attribute 'in_minutes')
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 517, in update
File "T:\InGame\Gameplay\Scripts\Server\time_service.py", line 117, in update
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\animation\animation_utils.py", line 457, in flush_all_animations
File "T:\InGame\Gameplay\Scripts\Server\animation\arb_accumulator.py", line 457, in flush
File "T:\InGame\Gameplay\Scripts\Server\animation\arb_accumulator.py", line 357, in _append_arb_to_element
File "T:\InGame\Gameplay\Scripts\Server\animation\arb_element.py", line 247, in execute_and_merge_arb
File "T:\InGame\Gameplay\Scripts\Server\animation\arb_element.py", line 274, in handle_events
File "T:\InGame\Gameplay\Scripts\Core\native\animation\arb.py", line 388, in handle_events
File "T:\InGame\Gameplay\Scripts\Server\interactions\utils\interaction_elements.py", line 186, in _behavior_event_handler
File "T:\InGame\Gameplay\Scripts\Server\sims\aging\aging_element.py", line 404, in _do_behavior
File "T:\InGame\Gameplay\Scripts\Server\sims\aging\aging_element.py", line 62, in __call__
File "T:\InGame\Gameplay\Scripts\Server\sims\aging\aging_mixin.py", line 916, in advance_age
File "T:\InGame\Gameplay\Scripts\Server\sims\aging\aging_transition.py", line 372, in apply_aging_transition_loot
File "T:\InGame\Gameplay\Scripts\Server\interactions\utils\loot.py", line 653, in apply_to_resolver
File "T:\InGame\Gameplay\Scripts\Server\interactions\utils\loot_basic_op.py", line 303, in apply_to_resolver
File "T:\InGame\Gameplay\Scripts\Server\high_school_graduation\graduation_ops.py", line 52, in _apply_to_subject_and_target
File "T:\InGame\Gameplay\Scripts\Server\high_school_graduation\graduation_service.py", line 83, in add_sim_info_as_graduating
AttributeError: 'int' object has no attribute 'in_minutes'rtim=0
I hope that helps in solving the issue.