OHR data lost after reboot

Good day everyone,
I'm new to OHR measurements and I'm wondering whether or not is normal that my new (got it yesterday) f5x losess it's OHR chart data every reboot?
I'm on newest available firmware.

0 tmk2 over 8 years ago

My FR735XT does the same.

0 b1azk0 over 8 years ago

Thanks, I'll assume that's how it works and move on.
Regards

0 RobdejongPT over 8 years ago

My 3HR did it and my 5X does it, pretty annoying but it seems "normal"