Activity tracking data (heart rate) not uploading
My watch is correctly set to track heart rate (SENSORS>> HEART RATE>> ON; and TRACKER>>HEART>>ON).
After synchronising my watch I note that under the ABOUT menu of the watch, two bars of the storage are still used, so it seems as if the heart rate data is accumulating in the watch, but is not uploading to MySports.
What is also quite strange is that the heart rate tracking data used to upload perfectly, but suddenly stopped uploading in May this year.
I've read through other discussions on the forum where users had a similar issue, and it seems that they were advised to do a factory reset to solve the problem. However I am reluctant to do a reset, as I don't want to lose the stored data.
Is there any other solution I could try? Any advice would be appreicated.