Tried again, no luck. Changed 40D -> 5D Mk2, same result. Changed USB wire, same result.
As you can see, focus did not move. I give up now. I've added ~1000 pictures to the shutter count to no avail. It doesn't make sense to run one test after another with the lens not moving one iota. Maybe the situation will have changed when I'm back from vacation. I wish you success and good luck!
Reviving an old thread because we ran into this issue tonight. We tried the autofocus feature on a Canon 700D with a Canon 50 mm lens and also with a Canon 200 mm lens but the autofocus doesn’t work. We tried using libgphoto2 from the command line and the focuser moves. Also from the control panel with View Finder switched on, when selecting a Manual Drive option the focuser moves. But not from the Focuser tab when clicking the focus in or out buttons unless the View Finder was enabled in the control panel. As soon as live view is enabled, the buttons stop working.
What else can we do to help investigate and resolve this feature?
ASI6200 and filter wheel with a SkyWatcher Esprit 80 ED on a SkyWatcher HEQ5-Pro
ASI1600MM-Pro Cooled and filter wheel with an 8" TS Ritchey-Chrétien on a SkyWatcher EQ6-R