Can't get AutoInput Click action to work

[itm]

I'm trying to use my Android Wear watch to trigger my camera shutter button when I shake my wrist. I've set up a Profile and Action as shown below:

    Profile: SHAKE TO SNAP (23)
    Restore: no
    Event: AutoWear Command [ Configuration:Event: &SHAKE&
    Command Filter: Shutter ]
    Enter: Shutter (21)
    A1: AutoInput Action [ Configuration:Type: Point
    Value: 555,2252
    Action : Click Timeout (Seconds):23 ]  

The shake gesture is recognised by the phone (Moto G 5G/Android 10), but the Click is not happening. I got the coordinates for the camera button using Developer Mode on the phone. I've also tried opening an app which responds to a Click pretty much anywhere on the screen (e.g. Settings), and nothing is being clicked when the Shake event occurs.

If I reconfigure the Action to open an App instead it works fine - it's just the Click action that doesn't seem to get fired.

Any ideas for why I can't get the Click to execute?

Full XML is attached.