I'm not sure why you were told that. In the artist packet, it clearly states that all paintings are receiving a 50/50 split from the auction. The only differentiation is that if someone paints ahead of the event, they aren't eligible for the extra prize money, just the auction split. That was an issue last year and we got feedback on it and changed it.
Could you please provide me with your e-mail so I can send you the artist packet so you can see for yourself? Do you mind letting whoever told you that information that it is not accurate. I'd hate to see our event not have many artists participating because of this. We are even allowing artists to bring extra paintings to the auction if they desire.