Checkbox in dropdown not updating

I am trying to edit a current form. When I make a change to the "checkbox in dropdown" field, nothing happens when I click "Update". I am forced to create a new field, which saves successfully.

Thanks for your help. 

Hi,

You can try clearing your form cache if this issue happens again. Here's a guide that you can follow: 

https://www.jotform.com/help/229-How-to-Clear-Your-Form-Cache

If the issue still persists, please contact us again so we can investigate it further.