Mouse tracking speed unstable, Catalina 10.15.5 (MacbookPro 2020, 16")

[lpslot]

Ever since today's update to 10.15.5, magic mouse tracking speed becomes insanely fast after Sleep. If changed to normal speed, it is insanely slow after restart.

 

[Taz Mangus]

Try applying the 10.15.5 combo update.

Download macOS Catalina 10.15.5 Combo Update - Apple Support (IN)

macOS Catalina 10.15.5 introduces battery health management in the Energy Saver settings for notebooks, an option to control automatic prominence of video tiles on Group FaceTime calls, and controls to fine-tune the built-in calibration of your Pro Display XDR. The update also improves the...

support.apple.com