Rather than just say it does not work, it would be more helpful if you could describe the scenario that you are testing that does not work for you.
it seams to work for me.
If I enter:
21.10.2023
it will validate the date
If I enter:
14.10.2023
it will not.
If you could describe what you are expiring, it would take out the back and forth of having me test something different.