Notify has completely disappeared from Home Assistant

Hello everyone. The ‘notify’ service has disappeared from my Home Assistant installation. When I got to Developer tools and try to call a service, the only thing that shows up is persistent notifications. I have the Alexa integration and Mobile Companion app, so based on my reading of the documentation, notify should be available. Any ideas on where I can go to begin diagnosing and fixing this?

Raspberry Pi 4
Version | core-2021.12.4
Installation Type | Home Assistant OS
Operating System Version | 5.10.63-v8

I seem to always get the problems no one has a solution for…

There will be an error in the Home Assistant log telling you why Notify failed to load.

I have the same issue, and the notify service did not work at all.
I have notify also for Telegram.

Version: core 2021.12.7
Installation Type: Home Assistant with Supervisor on Docker
OS: Debian

Has anyone figured this out? My notifications began failing I believe after I upgraded by 2021.12.1 and the notify service is not showing up in Dev Tools/Services. I just upgraded to 2021.12.9 hoping there might be a fix, but nothing yet. I read back through the release notes to see if I missed anything, but not finding a mention of a change for this.

Version: core-2021.12.9
Installation Type: Home Assistant OS
Operating System Version: 5.10.88