This is a brand new issue that appeared with 3.08.
When I take the watch off to take a shower, which I've always done, it used to just give a blank readout for heart rate.
Now, with 3.08, it keeps registering a heart rate. It goes up to like 240 and I get an "irregular heart rate alarm." So, basically, every time I take the watch off, it starts freaking out (and it also messes with my heart rate stats).
Weirdly, even when I put the watch back on, it keeps registering at 200+. I have to plug the watch into the charger and unplug it again to get the heart rate to normalize.
Anyone else having this issue?