I hope this takes care of the loss of heart rate reading/syncing when using the fitness app while watching videos on my iPad Air with AirPods. I've narrowed the issue down to iPad. It doesn't happen at any other time or using my iPhone to watch videos or listen to music while exercising with the AirPods. A bit annoying as I'm getting up there and I'm rather focused on my heart rate.
I'll give it a go tomorrow and see if the update took care of this.