Thanks for this tip, this seem to have solved another small issue I have been having too with a message saying "Failed to stop playback...". Before I had to restart the whole computer to get rid of it and to continue watching playbacks, now I could just reload the webpage in chrome and it was gone!
I wrestled with this same problem, the solution for me was to go into chrome settings and under privacy to "Clear browsing data". For me "Browsing data", "Download history", "Cookies and other site data" & "Cached images and files" was pre-check-marked. I chose to clear these and the problem was...