Warning Layer - Custom Freeform T/F

Hi everyone

I'm working with Storyline 360. I have created a custom true/false interaction with the freeform template. I have 1 attempt and a custom warning layer. I have triggered the warning layer when the user clicks the submit button and both the true and false radio buttons are normal. I have a trigger to submit interaction when the user clicks the submit button but either of the true or false radio button are set to selected. 

I am getting the warning layer when I don't select either True or False, which is the behaviour I want. However, when I select an option I click submit, I get the feedback layer but then the warning layer comes up. How can I prevent the warning layer to appear once the true or false radio buttons have been selected and the interaction has been "submitted"?

Thanks

Sandy