What format are your dates in?
Can you provide a link to the Tableau Public view. I am assuming since the post is on public that all of the data is public and we can review the details to assist further. A link to the post and an example of the source google data would allow us to reproduce the issue if it is persisting.
Also, what version of Tableau Desktop are you utilizing?
It's working with DD/MM/YYYY :-)
but this is is not working DD.MM.YYYY.
An technical case is open.