I deployed the forms to Staging environment and see how the forms were performing.
I exported the data using Export form data into CSV button and i received ‘The date range is invalid. Please select a date range that is within the range of the list.‘ error.
I tried different range and it threw the same error. I checked the db([project]. ExperienceForms) and there was NO DATA!
I submitted the form and tried again. It downloaded the CSV file with an entry on it.
Hope this helps someone.
Happy Sitecoring.