Hi i have a vivofit 4 and i use Garmin Express on my windows 10 surface pro to upload the data to Garmin Connect via a usb cable. it has been working well up until 4th March and since then l am only getting a few days of data uploaded. There are no errors when i plug it in to the computer to sync and it all seems to be working fine. It is just that the data is not appearing in Garmin Connect. And the data that l am getting is not what is on my vivofit 4 eg the step count is wrong.