During a HIIT activity with Free Timer, pressing the BACK·LAP button inverts the background colors and does not mark a new lap. I have to press the BACK·LAP again in order to mark a lap. So each lap requires 2 BACK·LAP button presses. This does not happen during the preset HIIT Timers like AMRAP, only the Free Timer. This does not happen during other activities like Runs, Strength, etc.
I've looked at the settings and can't figure it out. Auto Lap is set to Manual Only. Auto Pause, ClimbPro, Auto Scroll, Rep Counting.
Any ideas?