after some troubleshooting I wanted to share my solution here:
- Sim hangs sporadically
- Sound drop outs
- Crash to desktop (sound stops, sim runs a few seconds and freezes)
Offending USB device, disconnecting / reconnecting after a few ms.
To debug, I used the tool USB Tree View and highly recommend it, since I have a lot of USB devices
Just watch for red/green devices: red are disconnects, green reconnects. Sure enough, in my case it was a USB webcam. Removed it, all issurs went away.