Date format not working in every second row

Hey team,

I have a client website and the connector form is sending a string of numbers on every second row, instead of the properly formatted date.

Here is a screenshot:

https://www.dropbox.com/s/h9uil38g2okcatq/Date%20not%20working%20every%20second%20row.png?dl=0

This is for both a gravity forms date field and a column which tracks when the date and time of when the form is submitted.

Could you support with this?

Warm regards,
Jonathan.