msvsmon.exe crashed when debugging

Question

When I debugging in VS2013 update3, msvsmon.exe crashed when hit at a breakpoint.

It shows \"The debugger\'s worker process (msvsmon.exe) unexpectedly exited. Debugging

Answer 1

I hit this in Visual Studio 2019 (16.4.3) (C++) with a cause that I have not seen mentioned: I had accidentally added a Watch with incorrect syntax that was attempting to instantiate a singleton rather than returning the existing instance.

Repeatedly choosing right click > Clear All in the Watches view while debugging fixed the issue.