What is JotForm?
JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
At JotForm, we want to make sure that you’re getting the online form builder help that you need. Our friendly customer support team is available 24/7.
We believe that if one user has a question, there could be more users who may have the same question. This is why many of our support forum threads are public and available to be searched and viewed. If you’d like help immediately, feel free to search for a similar question, or submit your question or concern.
This problem usually happen when there are mutliple instance of the Form Builder opened on the same browser.
Please try this procedure and check if it resolve the issue:
#1 Log out of JotForm.
#2 Close all open browsers
#3 Open browser and login to JotForm at https://www.jotform.com/login
#4 In your Form Builder open your cloned form you want to Edit.
#5 Edit and Saved the form.
#6 Preview the form and check if changes are now properly saved.
Let us know if issue still persist.