For a while my VO2 max reading on the watch was stuck on 45. I performed a factory reset of my watch it says "run for 10:00 outdoors with HR". All the user settings and heartrate zones are set up. In the meantime I have done more than 20 runs with heartrate monitoring but the watch just won't register VO2max. It keeps the message to run for 10:00 with HR. Everything is logged inGarmin Connect, but the VO2max still has value of 45, even while i manually changed it to 1 under Profile and account. I hope someone has a suggestion or better a solution.