Why do I have a "downgrade available" notification?

[Norstaera]

For a long time I just let Vortex install updates. I see a notification there's an update, and I restart Vortex to install it. I don't remember the last time I changed any of my settings, other than what I see on the Dashboard. Probably been years.

A week ago, as normal, I let Vortex install v. 1.12.6. Yesterday I booted up my computer and Vortex where I saw a "downgrade available" message and don't really understand why I'm getting it. And I can't just dismiss it. It just lurks under the bell. The Downgrade Warning says that my version of Vortex is newer than the one online - really? I did not downgrade, for the record.

Am I missing something or is this a glitch I need to report?

I can still load up my game. Other than annoying me it doesn't appear to be doing anything. I'm attaching a picture of the notification and the more info. Thank you.