Unable to log into Admin

It happened overnight. Yesterday I could log in fine, this morning, I cannot.
TFA window does not appear. I did update to the latest maybe a week ago.

Things I have attempted:
Restarting the server
Update / upgrade (again)
And still nothing appears.

What are my next steps?

Thank you so much!

According to Google console, This is the css that’s blocking it.

By disabling the css, I was able to log in.

[ng\:cloak], [ng-cloak], [data-ng-cloak], [x-ng-cloak], .ng-cloak, .x-ng-cloak, .ng-hide:not(.ng-hide-animate)
Specificity: (0,2,0)
 {
    display: none !important;
}