Variable changes with multiple question attempts

Hi,

I have created a Pick One activity, and created two variables, Home and Away, and references to these.

When the user clicks the correct shape, home changes by an increment of 1. 

When the user clicks the incorrect shape, Away changes by 1 also.

All good so far, but when I choose to give the user multiple attempts, the incorrect reference doesn't increase if a second incorrect answer is given. 

Think it must be my variables, any help appreciated. Sorry if unclear! 

here is the demo

top left is correct answer. you have three attempts. 

here is the story file. 

thanks in advance

Steve

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