Date picker conditions not working

In all my forms, whether the end date should show 180 or 365 days from start date, the are all showing 11-30-1899!!

Just started today with my forms.

What is going on!

This seems to be a duplicate of your other thread here https://www.jotform.com/answers/1678790. I will be responding to you on that thread to avoid confusion on other supporters.