I was flying into KTEB this evening and experienced a reproduceable bug in which the simulator would crash.
Whilst preparing my displays for the final descent and approach phase, I accidentally opened the Checklist page on the Captain's MFD. I removed this in favour of EICAS and instead loaded the checklist on the FO's MFD. I remember hearing the checklist begin again from the very top when displayed on the Captains side but ignored this. Having loaded the checklist on the FO's side, it was again at the top of the Flight Compartment Safety Check. I skipped to the 'next checklist' item and used the press button on the DCP to skip to the descent checklist. I then hit numpad plus on the SECOND item in the checklist, the sim crashed.
I reloaded the sim, resumed the flight, sorted the AP out, loaded the checklist on the FO's side, hit numpad plus and the sim crashed. Log excerpt as follows:
2022-01-11 23:45:44 CL650[afd_cklist.c:1772]: assertion crsr->item <= list_count(&ck->items) failed (0x41 <= 0x8)
Backtrace is:
0 00007FF9CEFA4F69 C:\Windows\System32\KERNELBASE.dll+0000000000034F69 ()
1 000000008280FB32 D:\Games\Steam\steamapps\common\X-Plane 11\Aircraft\X-Aviation\CL650\plugins\systems\win_x64\systems.xpl+000000000022FB32 (afd_cklist_update_xtlk+4e2)
2 0000000082848AF1 D:\Games\Steam\steamapps\common\X-Plane 11\Aircraft\X-Aviation\CL650\plugins\systems\win_x64\systems.xpl+0000000000268AF1 (afd_mfd_main+1751)
3 00000000827FCF4F D:\Games\Steam\steamapps\common\X-Plane 11\Aircraft\X-Aviation\CL650\plugins\systems\win_x64\systems.xpl+000000000021CF4F (afd_main+15ff)
4 0000000082AC6081 D:\Games\Steam\steamapps\common\X-Plane 11\Aircraft\X-Aviation\CL650\plugins\systems\win_x64\systems.xpl+00000000004E6081 (runpool_worker+1181)
5 0000000082ABE53F D:\Games\Steam\steamapps\common\X-Plane 11\Aircraft\X-Aviation\CL650\plugins\systems\win_x64\systems.xpl+00000000004DE53F (_lacf_thread_start_routine+f)
6 00007FF9D07D7034 C:\Windows\System32\KERNEL32.DLL+0000000000017034 ()
7 00007FF9D12E2651 C:\Windows\SYSTEM32\ntdll.dll+0000000000052651 ()
--=={This application has crashed!}==--