BOLT with Scosche Rhythm24 can't show the heartbeat value

I use BOLT. Recently I bought a heartbeat detector (Scosche Rhythm24).
I can add this device on the IOS APP, but I can’t see the heartbeat value on the BOLT.
I have a column for heartbeat .
Thank you for your attention, looking forward to get an answer.

Hey @chen_sean, welcome to the forums!

Take a look at this and see if it helps: