Heart Rate Monitor

Hi, 

I have a Fenix 7 Pro and my heart rate monitor has stopped working suddenly. 

Is anyone else experiencing this issue?

I have, turned it on and off again, hard restarted it, re-installed the latest software.

I'm reluctant to reset it as i will loose all my data i believe unless someone can tell me different? 

Any help would be much appreciated. 

Thanks, Josh