Code:
Unhandled exception: c0000005
...
Thread 8A04: (Crashed)
Stack EIP Arg0 Arg1 Arg2 Arg3 Address
000000D0B9F0AB90 00007FFC89023561 0000000000000000 0000000000000000 000002A3AF784B70 000000D0B9F0ACE0 qt6widgets.dll!0x7ffc89023561
000000D0B9F0AC20 00007FFC89016EAF 000000590000007E 000000D0B9F0AD48 000002A2408D3640 0000000000000000 qt6widgets.dll!0x7ffc89016eaf
000000D0B9F0AC70 00007FFC89016CC2 0000000000000002 000000D0B9F0AD48 000000590000007E 0000000000000000 qt6widgets.dll!0x7ffc89016cc2
000000D0B9F0ACD0 00007FFC8900E7A7 0000010500000000 0000000000000000 00007FFC89016C10 00007FFC8900F600 qt6widgets.dll!0x7ffc8900e7a7
000000D0B9F0AD40 00007FFC89016BFC 000002A240861200 0000000000000000 000000D0B9F0B530 000000D0B9F0AE90 qt6widgets.dll!0x7ffc89016bfc
000000D0B9F0AD70 00007FFC89057487 0000000000000015 000002A2408D3310 000002A240861200 00007FFC88EFE2CC qt6widgets.dll!0x7ffc89057487
000000D0B9F0ADA0 00007FFC88F009DA 000002A23B272D50 000002A2405DE540 000002A2408D3310 0000000000000000 qt6widgets.dll!0x7ffc88f009da
000000D0B9F0ADF0 00007FFC88EFE15A 0007FFFF0007FFFF 0000000000000000 000002A24081F9D0 0000000000000000 qt6widgets.dll!0x7ffc88efe15a
000000D0B9F0AE90 00007FFC88F2746D 000000D0B9F0B530 0000000000000000 000000D0B9F0AFF0 0000000000000000 qt6widgets.dll!0x7ffc88f2746d
000000D0B9F0AEE0 00007FFC88F272CE 0000000000000001 0000000000000000 000002A34E4DCD44 000002A240780588 qt6widgets.dll!0x7ffc88f272ce
000000D0B9F0AF10 00007FF6AA41C964 000002A23B1B0000 00007FFD00000000 0000000000000000 000000D0B9F0B0A0 obs64.exe!OBSBasic::SetTransition+0x1a4
000000D0B9F0AFA0 00007FF6AA60004D 0000000000000000 00000000000000ED 000000D0B9F0B530 00007FFC88C8C2BB obs64.exe!OBSBasic::qt_static_metacall+0x268d
000000D0B9F0B320 00007FF6AA6015B3 0000000000000000 000000D0B9F0B459 000000000000000C 00007FFC88950091 obs64.exe!OBSBasic::qt_metacall+0x43
000000D0B9F0B350 00007FFC8DDF4801 0000000000000003 000002A240973680 0000000000000000 00007FFC88F2E58B qt6core.dll!0x7ffc8ddf4801
000000D0B9F0B390 00007FFC8DE2682A 000002A240973680 000000000000000C 0000000000000007 0000001600000003 qt6core.dll!0x7ffc8de2682a
000000D0B9F0B4C0 00007FFC8DE29494 000000D0B9F0B6A0 000000D0B9F0B5F0 000002A240928E60 0000036C000007D1 qt6core.dll!0x7ffc8de29494
000000D0B9F0B4F0 00007FFC88FF527B 0000000000000000 00007FFC891A46D2 00007FFC8929A5C0 00007FFC8929A5C0 qt6widgets.dll!0x7ffc88ff527b
000000D0B9F0B620 00007FFC88FFD107 0000000000000000 00000000FFFFFFFF 000002A3FD6C28B8 0000000000000000 qt6widgets.dll!0x7ffc88ffd107
000000D0B9F0B730 00007FFC88FFC850 0000000000650000 000000D0B9F0B9A0 0000000000000001 00007FFCFF553BD4 qt6widgets.dll!0x7ffc88ffc850
000000D0B9F0B7A0 00007FFC88FF7722 0000000000000000 00007FFCFF553BD4 0000000000000005 000002A2409286C0 qt6widgets.dll!0x7ffc88ff7722
000000D0B9F0B7E0 00007FFC8DE267A5 000002A240928640 000000000000000F 0000000000000003 000002A20000002C qt6core.dll!0x7ffc8de267a5
000000D0B9F0B910 00007FFC8DE29494 000002A2409DF940 00007FFC89299920 000002A240928640 0000000000000008 qt6core.dll!0x7ffc8de29494
000000D0B9F0B940 00007FFC8DFF9530 000002A240928640 000002A240928640 000002A2405DE6C0 0000000000000000 qt6core.dll!0x7ffc8dff9530
000000D0B9F0B9E0 00007FFC88A8793B 000002A2409286C0 000002A240928640 00007FFC89299920 000002A240928640 qt6gui.dll!0x7ffc88a8793b
000000D0B9F0BA30 00007FFC88A879E1 000002A45C661640 000002A2408BA200 000002A6E7CAEB50 00007FFD2509E0FB qt6gui.dll!0x7ffc88a879e1
000000D0B9F0BA60 00007FFC88FF32AD 0000000000000020 000002A24093A700 000000D0B9F0BB99 FFFFFFFFFFFFFFFF qt6widgets.dll!0x7ffc88ff32ad
000000D0B9F0BB40 00007FF6AA44C614 000002A22E49BAF0 000002A22E49BAF0 000002A22E49BAF0 000002A240861200 obs64.exe!OBSBasic::ClearSceneData+0x1e4
000000D0B9F0BC00 00007FF6AA44D25F 0000000000000000 000002A23B1F2DD0 000002A240861200 0000000000000000 obs64.exe!OBSBasic::closeEvent+0x6ef
000000D0B9F0BCA0 00007FFC88F13F7A 000002A23B1F2DD0 000002A23B1C0C60 000002A23B1F2DD0 000002A23B1F2DD0 qt6widgets.dll!0x7ffc88f13f7a
000000D0B9F0BD80 00007FFC88ED1D2E 000002A23B1F2DD0 000000D0B9F0BEB0 000002A23B1C0C60 000002A23B1F2DD0 qt6widgets.dll!0x7ffc88ed1d2e
000000D0B9F0BDB0 00007FFC88ED0EB9 000000D0B9F0FB00 000002A240861200 000000D0B9F0C070 000002A200000000 qt6widgets.dll!0x7ffc88ed0eb9
000000D0B9F0BFE0 00007FFC8DDE704F 000002A23B1C0C60 000002A23B1F2DD0 000002A240861200 000002A789D28310 qt6core.dll!0x7ffc8dde704f
000000D0B9F0C050 00007FFC88F164D9 000002A754423680 000000D0B9F0C5D0 000000D0B9F0C179 00007FFD21C8DA8D qt6widgets.dll!0x7ffc88f164d9
000000D0B9F0C0A0 00007FFC88F33BDC 000002A24056AA50 000002A2405DCE60 0000000000000000 000002A620E10100 qt6widgets.dll!0x7ffc88f33bdc
000000D0B9F0C0D0 00007FFC8883BEA3 0000000000000001 00007FFC88FCA564 0000000000000000 00007FFC178CECE8 qt6gui.dll!0x7ffc8883bea3
000000D0B9F0C1E0 00007FFC88F34648 000002A23B1F2DD0 000002A23B1C0C60 000002A23B1F2DD0 000002A2405DCE60 qt6widgets.dll!0x7ffc88f34648
000000D0B9F0C2E0 00007FFC88ED1D2E 000002A23B1F2DD0 000000D0B9F0C410 000002A23B1C0C60 000002A23B1F2DD0 qt6widgets.dll!0x7ffc88ed1d2e
000000D0B9F0C310 00007FFC88ED0EB9 000000D0B9F0FB00 000002A2405DCE60 000000D0B9F0C5D0 000002A200000000 qt6widgets.dll!0x7ffc88ed0eb9
000000D0B9F0C540 00007FFC8DDE704F 0000000000000000 00007FFC887E9E41 000002A386116B10 000002A200000000 qt6core.dll!0x7ffc8dde704f
000000D0B9F0C5B0 00007FFC887F1DFA 000002A386116B10 0000000000000001 000002A620E10130 000002A23B1C6F00 qt6gui.dll!0x7ffc887f1dfa
000000D0B9F0C5F0 00007FFC8884D9AC 000002A22E610660 000000D0B9F0C720 00000000000000A4 000000D0B9F0C720 qt6gui.dll!0x7ffc8884d9ac
000000D0B9F0C620 00007FFC8DF67AE9 0000000000000000 0000000000000000 000002A22E610660 000002A23B24A280 qt6core.dll!0x7ffc8df67ae9
000000D0B9F0F770 00007FFC88ABAF89 00000000000000A4 000002A22E610660 000002A23B1F2DD0 000000D0B9F0F840 qt6gui.dll!0x7ffc88abaf89
000000D0B9F0F7A0 00007FFC8DDEE734 000000D0B9F0F840 000002A23B1C70B0 000000D0B9F0FDA0 00007FFC8E0DB218 qt6core.dll!0x7ffc8ddee734
000000D0B9F0F820 00007FFC8DDE4A5D 000002A23B1E1CA0 000002A2408AA4C0 0000000000000002 000002A23B1E1CA0 qt6core.dll!0x7ffc8dde4a5d
000000D0B9F0F880 00007FF6AA5C6A6C 000000D0B9F0FCE0 0000000000000001 000000D0B9F0FCF8 000002A23B1FBE60 obs64.exe!run_program+0xd3c
000000D0B9F0FCA0 00007FF6AA5C806C 0000000000000000 0000000000000000 0000000000000000 0000000000000001 obs64.exe!main+0x7ac
000000D0B9F0FE80 00007FF6AA63BB1D 0000000000000001 0000000000000000 000002A23B1F2650 000002A23B1D8840 obs64.exe!qtEntryPoint+0x15d
000000D0B9F0FF10 00007FF6AA63B08A 0000000000000000 0000000000000000 0000000000000000 0000000000000000 obs64.exe!__scrt_common_main_seh+0x106
000000D0B9F0FF50 00007FFD25FCE8D7 0000000000000000 0000000000000000 000004F0FFFFFB30 000004D0FFFFFB30 kernel32.dll!0x7ffd25fce8d7
000000D0B9F0FF80 00007FFD278FC34C 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ntdll.dll!0x7ffd278fc34c
This is crash of the OBS main thread. Small chance that OBS plugin can cause this. On close, the "SetTransition" function was called and then the libs that used to render UI crashed whole application.
The log from the session that was crashed (regular log, not a crash report) may has additional info. So, remove the "--disable-shutdown-check" command line key from OBS exe. Run OBS. Close OBS and if during next run of the OBS you'll see the message that previous run wasn't shut down correctly, then you may look at previous (last) log of OBS for details.