Looks aren't everything

This is a Stripey Chocolate Peanut Butter Loaf from Canadian Living. It looked so complicated that I even watched the video that goes along with the recipe. I used almond butter instead of peanut butter but other then that I followed the recipe to a T.
So I don't know why about a quarter of the batter ended up on the oven floor. Once it cooled it came out of the pan ok but even though it looks really neat, this recipe is not a keeper.