No signal popping up

Running Android 12 on Nokia c300. Zwift hub connects fine at first, but then get no signal. Works great on my Google pixel 7a.

Clearing Bluetooth cache works once, but error returns.

Running Android 12 on Nokia c300. Zwift hub connects fine at first, but then get no signal. Works great on my Google pixel 7a.

Clearing Bluetooth cache works once, but error returns.

Any guesses?