Hello, this is a bug on 12.23 ?
I think so, there is already another thread about it:
https://forums.garmin.com/sports-fitness/running-multisport/f/forerunner-255-series/308227/hr-screen---can-anyone-tell-me-what-these-numbers-are
I…
I don't know if Garmin is aware of this bug tho.
