I too, have this issue intermittently (and extremely annoyingly). Part of the problem is reliable reproduction of the crash. I'm thinking it may have something to do with having 2 video processors on the Dell XPS laptop I've been using (one being NVIDIA), so am about to try another laptop to see if it resolves it. I'll let you know if I see any difference.

If you find anything else out, please post it here.

Thanks