Using my Frontier X with Zwift on a PC connecting using bluetooth. First time it worked perfectly, but second time (today) although the device was connected on the pairing screen, recording (red flashing LED) and signal strength was good in Zwift, no HR data was seen by Zwift. Anyone got any tips as to what I might be doing wrong ? Tried turning monitor off & on again, re-pairing etc but same result. So went back to using my Garmin watch :-(. Traces recorded by Frontier X all look normal – i.e. the monitor was definitely “working”, it was just not reporting HR values via Bluetooth I think ?