@SimGuruKuxiku I am getting the same issue and it is creating a last exception for the sketchpad. I will DM you my latest save file. I am using the sketch impression option on the sketchpad. My Sim is in the stylist career.
<report><version>2</version><sessionid>da11ae9fb6811cab5e5321f7</sessionid><type>desync</type><sku>ea.maxis.sims4_64.15.pc</sku><createtime>2020-02-26 18:18:06</createtime><buildsignature>Local.Unknown.Unknown.1.61.15.1020-1.200.000.440.Release</buildsignature><categoryid>carry_postures.py:704</categoryid><desyncid>da11ae9fb6811cab5e5321f7</desyncid><systemconfig/><screenshot/><desyncdata>Exception in Sim Timeline: Exception resuming Element (RuntimeError: Unable to retrieve slot variable: StackVar: Found: Local Var var_map = _sims4_collections.frozendict({HAND: <Hand.RIGHT = 2>, INTERACTION_TARGET: object_Sketchpad(0x0fee0ad64e53a7ec), CARRY_TARGET: object_Sketchpad(0x0fee0ad64e53a7ec)}) Local Var slot_var = PostureSpecVariable.SLOT Local Var dest_state = PostureState(stand:13153, posture_CarryNothing:12680, posture_CarryNothing:13154) (<PostureTransition: posture_CarryObject:13115 to posture_CarryNothing:13154>)._interaction = running sketchpad_Staging_SketchImpressionLoot:171034 on object_Sketchpad:0x0fee0ad64e53a7ec (guaranteed) Not Found: ) Traceback (most recent call last): File "T:\InGame\Gameplay\Scripts\Server\scheduling.py", line 217, in simulate File "T:\InGame\Gameplay\Scripts\Server\elements.py", line 385, in _resume File "T:\InGame\Gameplay\Scripts\Server\postures\transition.py", line 417, in do_transition_animation File "T:\InGame\Gameplay\Scripts\Server\carry\carry_postures.py", line 704, in append_exit_to_arb RuntimeError: Unable to retrieve slot variable: StackVar: Found: Local Var var_map = _sims4_collections.frozendict({HAND: <Hand.RIGHT = 2>, INTERACTION_TARGET: object_Sketchpad(0x0fee0ad64e53a7ec), CARRY_TARGET: object_Sketchpad(0x0fee0ad64e53a7ec)}) Local Var slot_var = PostureSpecVariable.SLOT Local Var dest_state = PostureState(stand:13153, posture_CarryNothing:12680, posture_CarryNothing:13154) (<PostureTransition: posture_CarryObject:13115 to posture_CarryNothing:13154>)._interaction = running sketchpad_Staging_SketchImpressionLoot:171034 on object_Sketchpad:0x0fee0ad64e53a7ec (guaranteed) Not Found: rtim=0 ClientInfo isn't here</desyncdata></report>
<report><version>2</version><sessionid>da11ae9fb6811cab5e5321f7</sessionid><type>desync</type><sku>ea.maxis.sims4_64.15.pc</sku><createtime>2020-02-27 05:22:36</createtime><buildsignature>Local.Unknown.Unknown.1.61.15.1020-1.200.000.440.Release</buildsignature><categoryid>carry_postures.py:704</categoryid><desyncid>da11ae9fb6811cab5e5321f7</desyncid><systemconfig/><screenshot/><desyncdata>Exception in Sim Timeline: Exception resuming Element (RuntimeError: Unable to retrieve slot variable: StackVar: Found: Local Var var_map = _sims4_collections.frozendict({HAND: <Hand.RIGHT = 2>, INTERACTION_TARGET: object_Sketchpad(0x0fee0ad9d3307551), CARRY_TARGET: object_Sketchpad(0x0fee0ad9d3307551)}) Local Var slot_var = PostureSpecVariable.SLOT Local Var dest_state = PostureState(stand:15923, posture_CarryNothing:15828, posture_CarryNothing:15924) (<PostureTransition: posture_CarryObject:15908 to posture_CarryNothing:15924>)._interaction = running sketchpad_Staging_SketchImpressionLoot:221487 on object_Sketchpad:0x0fee0ad9d3307551 (guaranteed) Not Found: ) Traceback (most recent call last): File "T:\InGame\Gameplay\Scripts\Server\scheduling.py", line 217, in simulate File "T:\InGame\Gameplay\Scripts\Server\elements.py", line 385, in _resume File "T:\InGame\Gameplay\Scripts\Server\postures\transition.py", line 417, in do_transition_animation File "T:\InGame\Gameplay\Scripts\Server\carry\carry_postures.py", line 704, in append_exit_to_arb RuntimeError: Unable to retrieve slot variable: StackVar: Found: Local Var var_map = _sims4_collections.frozendict({HAND: <Hand.RIGHT = 2>, INTERACTION_TARGET: object_Sketchpad(0x0fee0ad9d3307551), CARRY_TARGET: object_Sketchpad(0x0fee0ad9d3307551)}) Local Var slot_var = PostureSpecVariable.SLOT Local Var dest_state = PostureState(stand:15923, posture_CarryNothing:15828, posture_CarryNothing:15924) (<PostureTransition: posture_CarryObject:15908 to posture_CarryNothing:15924>)._interaction = running sketchpad_Staging_SketchImpressionLoot:221487 on object_Sketchpad:0x0fee0ad9d3307551 (guaranteed) Not Found: rtim=0 ClientInfo isn't here</desyncdata></report>