1. Did you checked if the data correctly flowed to the input element or not? ie. we should put data source for every ansenstor of the name input. And in input element we have to set the Initial Content though the parent group’s contracts.
  2. Preview the app in debug_mode=true and inspect the input and see the initial content to see if the data is empty or not.
  3. If above two doesn’t work for you, then you can share the source editor, I will check why it is coming blank.