I'm pretty impressed with the rep timer, but I'm not sure I'm using it quite right...
I start the strength training activity, do my first set, press the lap (bottom right) button and after it displays a summary of my 1st set for a few seconds, I get a rest timer that's started from 00:00 at the end of that first set.
When I'm ready for the 2nd set, I press the lap button again, do my 2nd set, then lap button. However, this time after the set summary, rather than a rest timer starting from 00:00 again, I just get the cumulative time for the workout session. What am I doing wrong that means I'm only seeing the rest timer at the end of my first set but not after subsequent sets? The activity settings don't seem to offer any clues.