First off, Cognito forms is awesome.. Amazing tool.

I have a club selection and a waiting list selection. I want people to be able to put their name down on the waiting list if there are no places... but not to accidentally add themselves if they've already chosen a club with spaces.

Im having trouble getting multiple repeating sections to block duplicate entries from a dropdown. 

The code Im using works if there is only one option selected. See image - the error comes up.

    =(WaitingClub.Contains(Form.SelectYourClubOptions.Select(Choice))

If however if add a second entry to the first section, the validation no longer works.

[![enter image description here][1]][1]

The second image shows two clubs added. It submits! But football already chosen Problem.

[![enter image description here][2]][2]


  [1]: https://i.sstatic.net/tK3qR.png
  [2]: https://i.sstatic.net/WkHXL.png