What version of firmware are you running? If you reset via the airgap does it start working?
The original firmware had a bug where the module would disconnect from the switch. As a result no commands are sent to the switch, and no lights turn on/off and fan speed doesn’t change.
Firmware 1.36 fixed this issue.
edit: oops missed you said you had the most recent firmware installed.
Does the air gap reset fix things? what about flipping the breaker off and on to reboot the module? You could also try repairing the module by pressing and holding the fan dimmer while pressing the fan button three times.