Since last week my 245M is crashing when saving an activity. When pressing "save", the watch is restarting. Then it goes back on the activity saving menu, I press save again, it crashes again. On the 4th or 5th times, it does not crash and the activity is saved but with a training effect of 0/0. It did that on every runs of last week. Yesterday I upgraded to SW 3.10, I've run today and the problem is still here.
Is that a known issue ? Any fix ?