I bought the logitech mx keys mini for mac, but I'm realizing that the fn key doesn't send any signal to my mac. I set up in the system keyboard setting and set fn key as "change keyboard layout", and I also use the fn key for shortcuts set in other apps.

To my surprise, when I press fn, nothing happens. This is a real disruption in my workflow.

I looked this up online and it seems that a lot of other users of this keyboard have this issue. Please provide a fix!