I have had the same issue after the update. I tried to correct it in settings>mouse but to no avail. When will this get fixed? We should not be forced to individually correct this since it is a common complaint now. I had to switch over to a manual wired keyboard because my Bluetooth ones mostly had issues during the past 3 months (all of a sudden). I now have to rely on the spacebar to scroll! What a hassle, any solutions or better shotcuts?