Dan, thanks so much. The form field you pointed out is necessary. It’s used by the webhook at Make to identify the website sending the form data. (The same webhook handles form submissions from multiple websites.) I first thought to do this using the config_path value sent by Elements, but Ben advised against it in this thread. A hidden input field with the name of the website does the trick.
The reason the Trigger wasn’t working was due to an error on my part. I mistakenly forgot to close the tag in my custom HTML. The malformed HTML caused the error.
I also regenerated my Turnstile keys. Thanks for the heads up. And thanks for your excellent support.