I was so glad to see this tutorial because the last two cakes I covered had this issue and I didn’t really know what was going on. But, I had to make a cake last night and I made sure to press the fondant more firmly against the icing and I didn’t end up with any air bubbles on the sides. I did, however, start to see one forming on the top and I poked it with a pin and it took care of it instantly and stopped it from enlarging as my cake warned up. Thank you sooooooo much!