I have Garmin Fenix 5s, the lap (return) button stopped working during and outside activities. Any recommendations?
Please have a look at the suggestions at this thread:
https://forums.garmin.com/outdoor-recreation/outdoor-recreation/f/fenix-5-series/258744/button-number-2/1237354#1237354
Make sure the lap button is turned on in the activity settings (Press up menu button after entering the activity screen on my Fenix 6s)