I'm getting this error (above) on this step: https://trailhead.salesforce.com/project/flow_reassign/flow_reassign_confirm : 
Challenge Not yet complete... here's what's wrong: 
Screen element 'Confirmation' isn't properly configured. Check the instructions.

My screen is configured correctly as far as I can tell: 



My overall flow looks like this: 


Can anyone spot an error or is this a Trailhead bug?