Hi,
Thank you for the details.
It shows, because you have the results shortcode below the search bar, and there is 2 instances of the same search bar on the same page: https://i.imgur.com/rD9tsrq.png
Both results container is moved to that location. If you change one of the search bars to a different one, it will resolve the issue.
I did not get the attachment about the date issue. Can you please re-upload it? Thank you!