I've spent most of this morning with an Insider build in a VM trying to work out what could be causing this problem. Could people who have this issue please try the following to see if it makes a difference for you:
- Press Windows+R (or Start -> Run) and enter services.msc to open the Services control panel.
- Locate the Connected User Experiences and Telemetry service, select it, and click the stop button at the top of the window to stop the service.
(note that if Opus is running, it will probably crash immediately at this point) - Right-click the same service entry, select Properties from the context menu, and change the Startup type to Disabled. Click OK.
- Restart your machine
After doing this, the service (which seems to be involved in tracking and telemetry) should no longer be running. See if this makes a difference to your Opus stability in the Insider build.
(note: because the crashes do seem to be random, you may have to try it for a day or two at least to see if it's made any difference.)