Problem with form builder, email is sent but the send button does not show the success message and icon keeps "spinning"

Hi, please find attached hidden info.

Hi, thank you for your test.
Have you reset the settings after your tests? I've found SMTP setting still there. Are you sure you posted your reply in the right thread?

I've tried setting PHP Mail in Joomla Configuration by myself but it doesn't work. Did I forget something?

Anyway, I'd prefer to use SMTP and I've already developed other sites that use SPPB's Contact Form with SMTP (same email provider and same configuration).

On these sites Submit button works properly and the "Submit Success Message" is correctly shown after the email has been sent.

So I guess there's something conflicting in this particular installation and my hope is that you, with your experience, can find what is interfering with the process.

Thank you very much
Kind regards

Yes, it seems it's ok.
What do I have to do to fix it on the production installation? Where was the problem?
Thank you very much.
Kind regards

I see.
Inner rows in pages with forms produce this kind of problems? Are you going to correct this in the next version?
Thanks!

Also, I've just realized that the same problem happens with Acymailing subscription module that you can find in the footer.

It's ok.
And would you be so kind as to check the same problem in the Opt-in Form (AcyMailing) at the bottom of the page, in the footer module, please?
Thank you!