Reset answer on try again?

This slide is a "pick many" slide.  When the answers are correct on the first try, it works just as it should and moves to next slide.  If the first try is incorrect, any additional tries communicate 'incorrect' even though it is correct.  I've toubleshooted over and over and am at a toatal lose.   I have two additonal slides that are the same style and are doing the same thing.  Please help.