With TR, if you’re only seeing power, then the Viiiiva is in bridging mode (i.e., bridging ANT+ to BLE)
IIRC, TR does not fully support the Viiiiva bridging mode where multiple devices (e.g., cadence, power, HR) would all be in a single BLE channel/connection. I think I remember Nate saying something about Viiiiva doing some weird and/or complicated things that made the development/support not worthwhile.
You have two choices:
- Run TR using ANT+ and disable bridging allowing your Viiiiva to send HR.
- Run TR using BLE which if your power meter can do native BLE, then disable bridging and your Viiiiva will send HR. If you require bridging, then you will not get HR from your Viiiiva.