We’ve been receiving a few reports about the marbles contained into the Potion Explosion™ boxes. Our beloved Professor Humblescore has an official announcement about the magic marbles included into each copy of the game:
you may notice that sometimes the marbles for your Potions may present slight imperfections, like slightly variable dimensions or small holes, and a slightly different tone of the same color. That is a normal condition of the marbles, since every single ingredient is unique. I can assure that these features don’t affect your potion-brewing experience in any way!
So no worries, students. Keep brewing powerful and incredible Potions!
Headmaster of the Horribilorum Academy for Witty Witches and Wizards