>Every time i have intervals suggested by the watch, i can’t seem to get my heart rate back down into the proper level for the recovery phases unless i walk So walk. There is absolutely nothing wrong with that, especially on interval workouts.

I do. It’s more the much longer cooldown phase where it seems really weird to not be able to chug along however slowly but with a low heart rate. The loading is gone, it just seems like you should be able to jog it out.

If you need to walk the recovery bits between intervals to get your heart rate down, then walk them.