Are you able to make the cards and then just not able to see them when you go to review? I had that problem and what was wrong was that the fields for the card were mapped wrong. I have no idea how it happened, but it was easy to fix. Go to tools, then "Manage note type", and select the image occlusion one you have been using, it should be something like "image Q/A". Click "Fields" and you can see the order that the fields are listed. It should be, from top to bottom "Question, Answer, SVG, Original Image, Header, Footer". You can rearrange them using the "reposition" button.