No heart rate shown in sleep overview

Betatesters
1

Beta-Version: 20191009
Smartwatch: Fossil Carlye, Wear OS

Everything is working fine, sleep tracking does its job and I can connect my watch to monitor my heart. When starting the measuring, I can even see the heart beating, so the connection works. But in the graph there are no heart rates. I just worked the very first time, but after that not once.
As mentioned I can establish a connection and my sensors are working fine, it’s actually a display problem?

Thanks for any advice!

2

Do you see the heart rate if you look at the previous nights? I have a similar issue, the HR isn’t shown at the graph immediately after the tracking ends, only when viewed from graphs.