After the blue triangle flashing non stop right before my run this morning , I did hard reset . Went running, later on showed my vo2 max went down by 5 points ! I was at 47 and suddenly after a run it was 42 . This was after hard reset .
I removed and re added the device to connect app , everything synced but vo2 max never back to normal .
Whatever happened with garmin today is so annoying