Click not playing ball

Here's one I seem to be coming across a lot, sometimes it works, sometimes it doesn't, and I'd really like to figure out why!

I've got an arrow that's supposed to pop up when users click in the wrong place on my software simulation. There's also an animated image, in this case for the search magnifying glass, that the user can click on to show them where the search button is.

My arrow is set to change state to normal if users don't click on the hotspot, or on the image, but still changes state if the user clicks the image.

I've added the screen in as it makes much more sense when you look at it. Any advice on why this seemingly incorrect behaviour is happening, and how I can stop it, would be welcome.

Thanks :-)

Paul