Quite amazed about how many issues with 10.5 already reported. I have one myself.
I updated from 10 to 10.5 and I noticed when I left my studio for a couple of minutes, Cubase crashed out of nothing. I come back to the computer and Cubase was crashed. In Event Viewer i see the following errors:
Faulting application name: Cubase10.5.exe, version: 10.5.0.68, time stamp: 0x5da4e875
Faulting module name: ntdll.dll, version: 10.0.18362.418, time stamp: 0x99ca0526
Exception code: 0xc0000374
Fault offset: 0x00000000000f9269
Faulting process id: 0xdd4
Faulting application start time: 0x01d59bbcc48e0c43
Faulting application path: C:\Program Files\Steinberg\Cubase 10.5\Cubase10.5.exe
Faulting module path: C:\Windows\SYSTEM32\ntdll.dll
Report Id: 4f979aa2-a838-4037-b1b5-af7026c619e8
Faulting package full name:
Faulting package-relative application ID:
No crashdumps are created however in the \Documents\Steinberg\CrashDumps folder
I have a Windows 10 Pro computer running Cubase Pro 10.5 with a Steinberg UR824. Windows 10 is version: 1903 build 18362.476
Do you have any idea what happens here?