Hey! This has been going on for several FW versions but this is the first time I caught it on camera. Latest FW is on the watch.
I've done two activities that day, mtb ride and hike. As you can see, body battery glance has some data right, some data wrong. Sometimes it is type, sometimes length of activity, sometimes start time, it is all over the place. Graph also doesn't mark activity in green.
First pic is accurate, list of recent activities
Second pic shoes wrong data, activity is not marked as green.
Third pic is wrong, shows both activities as hikes, having same start time. Body battery drain is OK (-3 and -19)