Hallo Eddie,
Oh dear! I was 'grabbing' the handle by pressing down the left mouse button when I see the white hand, and then pulling it towards the front of the cockpit (which is my usual procedure in - for example - the Fenix A320), but by playing with views and mouse direction I now see that if I move the mouse up or down the shaft of the handle, it does work! My apologies for writing too quickly!
(incodentally: I generally did manage to do it in the MSFS2024 version)