This is a new one for me today. Numerous times – while riding at speed – my 1040 kept spontaneously engaging Auto-Pause as if I had come to a full stop (I didn't): on-off-on-off, rinse and repeat. Several times it wouldn't even disengage Auto-Pause. In fact, it was stuck in Auto-Pause when I started my ride. At one point in my ride, I just forced a hard reboot of the 1040, and then it seemed OK...for a bit. I finally had to edit my profile and turn off Auto Pause to finish my ride and have the last bit recorded, which is not really how I want to deal with this.
Any ideas? I just now updated to 15.24 so maybe that will help. I was on 15.23.