Doorbell Push Alexa Notification have stopped

I have a Video Doorbell 4 with hard wired Power Source.
It is connected to Alexa via the Ring app and via the Alexa App. We have a variety of Alexa devices (Studio Echo, Echo and Dot’s).
Up until a few weeks ago it was working without issue. Someone would push the doorbell button and we would hear a notification on all Alexa devices.
Now it doesn’t.
I have restarted all the devices.
Uninstalled and reinstalled both Alexa and Ring Apps on my iPhone.
I have also disconnected the amazon account from the Ring App and reconnected it.
I have also disabled the Ring skill from Alexa and re-enabled.
None of these appear to solve the issue.
I have searched various threads but they either go cold without a solution, or one of the above solutions works for one person - but it hasn’t for me.

Please can you advise why notifications aren’t being pushed to Alexa - only to the Ring app on my phone?

Hi @Glenn6. You have tried all the basic troubleshooting steps I would have recommended for this type of concern. The next best step is to contact our support team to further investigate this with you. Give our support team a call at one of the numbers available here.