Error message "allow_choice_duplicates"

The same cascade that I have used in many questionnaires, recently it gives me an error:
“There does not seem to be a “allow_choice_duplicates” column header defined in your settings sheet. You must have set “allow_choice_duplicates” setting in your settings sheet to have duplicate choice list name in your choices sheet”
I don’t understand why this happens. Before it worked very well. I would appreciate it if someone could tell me what I should do to solve it
Thank a lots!

Hi @mparra
Welcome to the community forum. The issue is probably not with your cascade select but with duplication of response choices which has been discussed in the following topic


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