Like a few others have mentioned, a few days ago my random crashes suddenly stopped, and I have used Sonar for hours upon hours without issue.
However, it began crashing again today. I'm nearly at my wits' end.
It's important to note that this isn't just a Win10 issue; it's affecting Win8/8.1 users as well. (Both OS's go through some of the same updates and use some of the same coding, for what that's worth.)
I gave it several weeks, but I'm starting to get really pissed off now, not going to lie. I've paid $40/month for nearly a year for Sonar, and have been a loyal Cake customer for 10 years (even though I'm PT and Logic certified)....and in the middle of recording an album, the thing crashes frequently and randomly. It's maddening.