It seems like the Apple watch integration is just getting worse and worse with every single update. It either does not connect, or connects just for a few seconds. Half the time when it connects it reports the wrong heart rate, like it stays stuck at 95 or 125 or 210.
Don’t get me wrong, Apple Watch integration was never great, but it used to work once you got it connected, which used to sometimes take a restart of all devices. Right now, it’s basically completely broken.