Deleted widget from the builder still shows up on preview

I added a Date Picker WIdget and deleted it later. Now it doesn't show in the "Build" section, but when i publish it it still appears. 
How can i delete it?

Thanks

I checked your form and compared the BUILDER vs the PREVIEW but failed to find any difference on the first page (following the screenshot you posted). Here's how they look side by side from my perspective:

(builder on the left, preview on the right)

Can you tell us the name of the field that's supposed to be deleted? Or better yet, kindly share a screenshot of the form preview where the date picker widget shows up.

Hi, the widget appeared again in the editable window and i could delete t. Must've been an exibition bug or something.
Thanks anyway!

Can you please let us know the field name of the widget so that we can compare the form fields?

I have cleared your form cache, let us know if the issue still remains.

Thank you