Heart rate stuck on 80-90bpm while training on a Tacx S

Hi!

When I’m on my Tacx i record the training with Zwift and my Edge 530. My Fenix 7 Solar is showing the correct HR until i start the training. Then it shows numbers in the range of 80-90 bpm, although my real HR ist somewhere in the 130s. When i open the HR widget, it shows the correct HR. I use a BT HR Monitor for these trainings. The watch is not connected to the Tacx or Edge. Normally that would not bother me, but the watch is not counting the activity minutes. Can anyone help?

 Thanks in advance!

  • When I ride on Zwift I only connect my Tacx Neo and HR monitor to Zwift and record the activity only on Zwift. I wear my Fenix 7 passively and like you unless I open the widget the a nominal HR value is displayed. When I open the widget, the correct HR value is displayed and if I check the chart the HR history is also correct.
    Below is the HR from Zwift as presented in the activity on connect. The next chart shows the activity and recorded HR as found in the timeline and the final chart shows the increase in intensity minutes during the period of the activity.