Can someone tell me what went wrong? I'm really new to making sourdough. I have made a strong starter from scratch by mixing 2oz of water and flour and adding it to 2oz of starter. My starter is doubling in size, has a fruity aroma and lots of bubbles. I used this recipe to make two small loafs. https://www.kingarthurflour.com/recipes/rustic-sourdough-bread-recipe They were rising beautifully, I slashed them and put them in the oven. Not only did they come out really pale but they're cracked on the bottom. Do you have any insights?