Every time I save an activity my Vivoactive 4 powers down even though there is enough battery power. And, it randomly changes the time, I have to constantly confirm that the time is correct. It has also begun to take ages to connect to GPS satellites. I notice from this forum that this has become common with the Vivoactive 4, are the faults going to be addressed in a firmware update? I was hoping that the last update would remedy this but it has become worse...........