obs.dll crashed after 2 or 3 hours broadcasting - Overheating?

[Giovani Guidolin]

Hi there guys. I have been broadcasting Zoom classes with a teacher, local plus online audience. The laptop runs pretty smooth, no more than 40% total CPU usage (overall, not only OBS). Although, after 2 or 3 hours, OBS crashes. Zoom goes ahead. I start OBS over again and ok. Broadcast is simple: Video Switcher sends to OBS, native virtual camera to Zoom. I see obs.dll in the the crash log. Is there a chance that video card overheats? Or can anyone notice something else? Thank you a lot in advance.

Unhandled exception: c0000005 Date/Time: 2023-11-13, 21:00:36
Fault address: 7FFD5FA87DA5 (c:\program files\obs-studio\bin\64bit\obs.dll)
libobs version: 28.1.2 (64-bit) Windows version: 10.0 build 22621 (release: 2009; revision: 2428; 64-bit)
CPU: Intel(R) Core(TM) i7-9750H CPU @ 2.60GHz

Thread 4C0C: libobs: graphics thread (Crashed) obs.dll!obs_sceneitem_is_group+0x5
obs64.exe!SourceTreeModel::flags+0x42
qt6core.dll!0x7ffcec8d3736
qt6core.dll!0x7ffcec8de59b
obs64.exe!OBSBasic::GetTopSelectedSourceItem+0x2c
obs64.exe!OBSBasic::GetCurrentSceneItem+0x25
obs64.exe!OBSBasicPreview::DrawSpacingHelpers+0xf4
obs64.exe!OBSBasic::RenderMain+0x3e2
obs.dll!render_display+0x91
obs.dll!obs_graphics_thread_loop+0x44e
obs.dll!obs_graphics_thread+0xfb
pthreads.dll!ptw32_threadStart+0x126
ucrtbase.dll!0x7ffd74319363
kernel32.dll!0x7ffd7621257d
ntdll.dll!0x7ffd76fcaa78