Hi there,
I found problem when Broadcast HR started from Widget which do not work.
I can repeat this bug on and on and asking some of you for confirmation or deny.
You can check HR Broadcast with any external app capable to listen to BLE transmition.
I use just Samsung Health to scan Accesories. If you have Edge or other bike computer thsi should be fine too.
First open Widget HR, then Run and Select Broadcast. Next with Run you can toggle it on and off. Now it should work.
Second open Virtual Run activity. If you do not have it just add it. After starting it, watch will be waiting for pair with Zwift but that is not needed. Again check transmission. It should work.
You can repeat second step as many times as you want. It will work.
But after first Virtual Run HR Broadcast from Widget do not work anymore, despite it looks like should be OK. It is not.
Solution
I have discovered how to fix this by accident. I have forgot that most of Activities in its settings can Broadcast HR too. Choose Walk for example, switch Broadcast HR and start activity. You can verify again that HR is broadcasted.
And now if you start it from Widget it should work again.
I have no idea what cause this but can repeat this behavior on and on.
I am on 19.18 firmware