Adding a large image to a card messes up the layout of the card. You don't seem to be able to put text above or below images, just off to the side. Clicking to add the new card results in an interesting edit box. I've included images below of the card in view mode, adding new card mode and edit mode.

You'll also notice two other bugs. One is adding the test cardPLUSdiscussion says "name must be unique... already exists..." well it doesn't, it was being created for the first time. I'm sure you're aware of that one already. The other is below that, the familiar "oh man" but I'm not sure why that one showed up.