using Graded question - Sequence Drop down

I have created the question successfully but I want the retry to clear the answers and reset to the initial display, so they can try again from scratch.

I have the retry layer trigger to hide when clicked.

I added another trigger to this layer to jump to this slide when user clicks retry - hoping that would refresh the screen. 

On the base slide I set when revisited Reset to initial state 

However when I retry it still shows their initial wrong selections. ie it doesn't reset to initial state.

Am I missing something. I haven't used this option before and can't find much advice on it. Would appreciate some guidance.