Since 03/09/2025 I have experienced problems with the “Internal Notification” action.

By replacing the notification template with a new one (with more variables), the system shows in execution logs that the sending was successful; however, the message never reaches the user assigned to the flow.

Details:

Verified number: The number of the assigned user is correct. The old template was sent without a problem to the same user.

Approved templates: Both templates are verified by Meta and meet official guidelines.

Correct variables: It was verified that the variables used meet the requirements of Meta.

Custom fields: For this case, the additional variables correspond to custom fields in a form that was already answered previously by the contact.

Observed behavior:

With the original “confirmacion_pago_investigacion_jesus” template, shipping works properly.

With the new “confirmacion_pago_investigacion_jesus_1” template, which only adds additional form variables, the submission no longer takes place, although the registration indicates “success”.

I've tried multiple variations, and the flow only works when using {{contact.name}} and {{contact.phone}}. When you add any custom field, the message stops being sent.