I've setup a standard swim workout with repeats of 25 yards and a fixed rest timer of 10 seconds. What happens in the pool is that I swim the 25 yards, press the lap button, and sometimes (1/4 usually) it will completely skip the rest interval and go in to the next 25 yard interval. This is very frustrating to try and deal with when I am swimming.
The data afterwards shows a 0.00 second rest interval, and then typically the distance on the next interval gets messed up as well. I'd love to be able to count on the Fixed Rest Time interval type, but it's barely functional.
I've attached a screenshot of the 8 x 25yd that I swam.
This is the section of my workout that represents the 8 laps I swam. Yes, I know the workout says 50yds. That's a whole separate bug, but it's really 25 on my phone/watch.