Yeah I have the bluetooth PM but ant+ HRM was being difficult until I figured I could use my Garmin recording all the data I could see and the app would deal with the power data. thanks for the replies.
If it is a heart rate monitor that’s holding you back, just get a new one (unless you have e. g. a Bluetooth-enabled fitness watch). I know they last ages and I know the impulse to not replace something that still works. Still, seems like an easy fix.