In this 123Survey, we are having trouble adding a dropdown/cascade list to the 'Location List' option, extracting attributes from a layer.
See, we are configuring the desired attribute correctly here.

When I view this option in a web application, everything works fine, and the options appear

However, when validating the same app on a mobile device, whether iOS or Android, this option disappears or fails to load.


Is there some config I miss?