[RELEASE] Google SDM API - Nest integration

First off, this is a fantastic app/driver! Thank you!

I'm struggling to get this to turn on/off my fan. Can anyone please help or offer advice/suggestions? I want to be able to turn on the fan (not cooling, just the fan) using the driver. I can turn on the fan using the Nest app, and this driver can see that I've turned on the fan. But nothing I click on seems to turn the fan on.

Here's what the device page looks like when the AC is set to 'Cool' and the current temp is cooler than the set temp:

Here's what I see when I manually turn on the fan in the Nest app: (Note the changed 'thermostatOperatingState' variable to 'fan only' and 'ThermostatFanMode' changes from 'Auto' to 'on')

I don't see any errors or anything obvious in the logs, but no matter what button I hit on the device page (Fan Auto, Fan Circulate, Fan On, Set Thermostat Fan Mode to On, etc), I can't get the Nest to turn on the fan, like I can in the Nest App, even though the driver is clearly communicating through the API and receiving info when the fan is turned on via the Nest App. Does anyone have any advice please?

Note: making other changes like turning the mode off, or to cool, or setting the temperature, result in nearly instant changes in the Nest App, so everything else is working. I'd really like to get the fan working if at all possible.

Thank you!