QGroundControl says battery disconnected when arming

I have a hexacopter with a Pixhawk 6C Mini and Holybro PM08 power module.

Whenever I arm it, it says the battery is disconnected and the battery status icon shows ‘OK’ not a percentage. When I disarm it, the battery remaining percentage reappears again.

If I disable battery failsafe, the hexacopter flies well. There is something about the arming process that is causing the flight controller or power module to indicate there is no battery voltage.

I have set up the PM08 exactly as the holybro docs says to with the voltage divider and amps volt set.

any help is appreciated. thank you

Can you set SDLOG_MODE to log from boot and get a log of this behavior?