I just realized, as I went to cycle the fan on manually via the app.
I noted as android “issue” since it’s on my android phone and haven’t tried anything on iOS.
Anyway, Go to device.
Select fan on…nothing happens.
Wait a few minutes…nothing.
Start to get concerned, then tap Controls again to “close” that control panel.
Fan comes on.
After some testing, I see that whatever you select under controls doesn’t take affect until you close the control panel.
Not saying it’s good or bad, just how it seems to work. Not sure if that is intentional or not.