Arena Preferred classes not being selected

My bot is working arena's fine, but it never chooses my preferred classes even when they're listed.



For example There was Warlock, Mage, and Warrior. Warlock is not even in my preferred classes, but it chose warlock over Mage which is my #1 and Warrior my #5.



What do I need to do to fix this?

Arena Preferred classes not being selected