Installed WatchOS 2 beta 3 on my watch last week. One thing I noticed is that the HR monitor doesn't seem to record anything during a workout. I've tested both with an outdoor run and an "other" workout. Both times it will say "measuring" the whole time but never actually report anything. Looking at workout history confirms that nothing is recorded during the workout. I know this is a beta, and I'm not complaining. I'm just curious if others have noticed this as well. HR reports fine via the glance when not in a workout.