I found the offending plugin and CF7 now working fine (although a bit peeved about losing pop-up capabilities for one of my forms)
On an aside, the CF7 redirect plugin still works, although I thought that I read that it will become unusable soon due to phase out of a WP command.
Thanks @saltennys
Yes, need to spend the time to diagnose the issue.
We used to use the Contact Form 7 Redirection plugin, however, my understanding is that it will no longer work due to the phase out of the on_sent_ok command
Thank you @saltennys!
The switch statement is exactly what I was looking for, thank you.
Unfortunately, like others, I am getting the spinning icon issue so the form is not redirecting as intended. Hopefully when that issue is resolved, then we will see how the script is operating.