Finder class

Hi.

I have an array of images (communications) and in every images in the array I'm trying to find inside of that image another subimage ("E.png"). In some index positions there are images with the subimage "E.png" inside, but it returns everytime false.

 What I'm doing wrong?

My code is:

    communications = [("InterfaceAPI.png"),("Bridges8GPS.png"),
             ("InterfaceATC.png"),("ATCConfigura.png"),("ATCMessages.png"),
             ("InterfaceBHS.png"),("BHSSiemensMe.png"),("DownloadChut.png"),("Infrastructu.png"),("1350580843499.png"),("1350580851811.png"),("1350580861654.png"),
             ("InterfaceBIL.png"),("BillingMessa.png"),("BillingMessa-1.png"),
             ("1350570433841.png"),
             ("InterfacesPi.png"),
             ("1350570945044.png"),
             ("Ping8Bring.png")]
    for i in range(len(communications)):
        sleep(1)
        try:
            f = Finder(communications[i])
            if f.find("E.png"):
                 hover(communications[i])
            else:
                sleep(0.5)
                if exists(communications[i]):
                    keyDown(Key.CTRL)
                    click(communications[i])
                    keyUp()
            f.destroy()
        except:
            exit()

Thanks in advance,

Tiago Reis