Constant Crashing when Starting Cubase 12 Pro

[Nico5]

… potentially a wdmaud.drv related issue.

potentially related:

Still getting Wdmaud.drv freeze on hub

So I checked the article I wasn’t familiar with the issue, but now I see It says that it may happen after a disconnect because the old API doesn’t handle disconnects gracefully. That I do know. If you’re not unplugging USB devices, I would think it’s possibly a virtual device connection, like VEP, that is being released before Cubase tries to send the closing SysEx to it. For WinRT MIDI, it may be you’re out of MMCSS threads (incoming MIDI data uses them in the WinRT API). Steinberg has an a…

and

Error message on Windows: MMCSS priority cannot be set!

Potential solution: increasing Windows MMCSS threads via the MMCSS Tool (SetMaxMMCSSThreads.exe) linked on the Steinberg Support page (while maybe also using WinRT MIDI)