Removing write/modify access of the logged on user to the widevinecdm has seemed to stop the update of 4.10.1146.0 to any higher non-working version. I've had the browser open for over 2 hours playing Netflix and it usually updates by now to a higher version but has not done so since the permissions changes.
In case anyone cares to follow suit.
Not sure how this is going to affect overall functionality, however, since I've noticed nothing out of the ordinary and I've only change permissions on the wide-vine directory and not the whole profile directory I think I'm good.
