OK, I've struggle with this for a little while now, but I think i have found a solution

PROBLEM:
Suddenly, normally following a form element change/modification or delete, a manual Submit Button that validates and moves to the next page stops working.

SCENARIO:
I have a form with several sections and elements, I used the hide function to hide/show a Submit Button that validated and moved to the next page, everything worked fine.

My form also has a "Summarize" page at the end for my users to confirm their input before submitting the complete form.

All worked well.

WHAT I DID:
I then go and either, delete or modify an existing element, that was referenced in the "Summarize" page.

Suddenly, my Submit Button stops working. No Error, nothing to suggest why.

WHAT I FOUND:
If the Summarize page still includes reference to an element that no-longer exists (deleted or had it name changed) the Submit Button no longer works.

Remove any reference but not present Summaries and it all worked again.

Hope this helps someone...

Same here. I cannot get my forms to work at all. The Submit button doesn't even have a link - it's just an image.

I have also found that if you have the wrong validation on things like radio-buttons, this can occur.

Care review of your validation types and any Summary elements that may have changed or be present but the original element was deleted can solve this in some cases.


I had also tried deleting the "Standard Scripts" package and re-installing it, incase it was damaged somehow, after completing this I found that the order of the scripts changed, and that meant I had to go back through all my forms and re-set all my validations before it worked again.