This worked well and the problem started happenning about two weeks ago.
I run a Chrome on a Windows 10 computer. I have already tried uninstalling, and then reinstalli
Check out: https://groups.google.com/forum/#!topic/google-chrome-developer-tools/s47cbyLKvxA
I haven't digested the thread fully, but I think it's due to a deprecation in Chrome that is outside of the DevTools team's control.
Please let us know if this is indeed the same issue that you're seeing.