Message webhook fails to send to server

[jaffakakes]

Bug Report: Specific Webhooks Not Triggering
Describe the bug
While the webhooks for comments and reactions are functioning as expected, the webhooks for message, messaging_referral, and messaging_postback are not triggering. Even when using the "Test" button in the Meta Developer Console to send sample test events, these specific webhooks do not work as intended.

To Reproduce
Steps to reproduce the behavior:

Go to the Meta Developer Console.
Navigate to your app and go to the Webhooks section.
Ensure that the app is subscribed to the following fields:
messages
messaging_referral
messaging_postback
Click the "Test" button next to any of these fields to send a sample test event.
Observe that the server does not log the event or trigger the expected behavior.
Expected behavior
When a message, messaging_referral, or messaging_postback event is triggered, the webhook should receive the event, and the server should process it accordingly, similar to how comments and reactions are being processed.

Additional context
Webhook Configuration: The webhook URL and verification token are set up correctly. The same webhook is successfully receiving and processing comments and reactions events.
Permissions: The app has the following permissions granted:
pages_show_list
instagram_manage_messages
pages_messaging
pages_manage_metadata
business_management
Testing: Using the "Test" button in the Meta Developer Console does not trigger any server response for messages, messaging_referral, or messaging_postback events, but it does for other events.
Server Logs: No logs are generated when these specific events are triggered, indicating that they are either not reaching the server or are not being processed correctly.