Since the latest firmware update I've had multiple issues with my FR265 when using my HRM-Pro Plus for pace when using the virtual run option on a treadmill.
I'm getting over 1 minute per kilometre faster pace than what should be the case which I verified using my Stryd footpod (for instance: Stryd = 5.45mins per km which is close to the treadmill but the HRM is reporting 4.45mins per km).
So I configured my watch "not" to use the HRM for pace and to use the Stryd for indoor runs. But the HRM overrides the Stryd and the problem continued.
Then I deleted the calibration data on the HRM and it was accurate again. But on the next run it was reporting 1 min per km faster again.
So then I tried to delete the calibration data again but the option to enter the HRM settings is blocked and I can't change anything.
For now I've stopped wearing the HRM strap and I'm using my optical heart rate on the 265 and the Stryd for indoor pace. Which isn't ideal but what can you do.
Any suggestions? If I do a hard reset will I lose all my data?
Thanks