Same problem. Whenever it is working, and I then have to disconnect my phone and come back the next day and reconnect it, it stops working.

I have the same problem and is trying the "back and forth" method of using the iPhone. I suggest you disable this feature on the watch when the iPhone is not reachable.

Same problem here. Xcode says running for minutes, although it is clearly not. Even if you turn off the Apple Watch, it is still running...