A couple of times after installing 19.22 my step timer has stopped advancing. Today during a 17min interval it stopped advancing and I tried stop/start and actually stopping the bike and starting again to get it going. 20min into the 17min interval there was 12 min to go on the clock. I advanced using the lap button into a 15min cool down and that did timer did not advance either. For both steps if I selected start/stop it would add 1 second to the remaining time.
This happened a couple of days ago as well.