Hide All, Guess One Image Occlusion Button Problem

With the new update, has anyone had problems with the “Hide All, Guess One” button not working properly when adding an image occlusion card? I have to press button several times for it to actually add the card, sometimes duplicates. Another student is having this same problem since the update. Also, is there a known shortcut to add “Hide All, Guess One” image occlusion cards without having to hit the button? A shortcut would solve issue in short-term. Thank you.