Duplicated elements on the lookup tables

Hi, I have implemented a look table to filter state, district and village, but the problem I am having, is that, for the district, each label elements is appearing twice. I have checked in my table all the elements are not repeated, any one with a solution?

Hi,

Can you provide more element please ? Such as were you are seeing elements twice, configuration of the question in the app builder, etc.

-Michel