Secondary email notifications not being sent since upgrade to 4.0

Since the recent JotForms upgrade, our primary email notification entry is receiving emails as expected, but anyone listed as "Notifier 2" or "Notifier 3" or "Notification 2" is not receiving those emails.

Has some setting changed that we need to be aware of?

I checked the three email recipients and they're not in our bounce list anymore. Here's a guide how to check your email logs history: https://www.jotform.com/help/293-How-to-View-All-Your-Form-Email-History

There's no changes made in email notifications in version 4.0. You can also try adding all email recipients in one notification and see if that works.

If the issue persists, please contact us again.