Glitchy page transition with remnants of previous page?

Not sure if anyone else faced the same issue.

I have a basic authentication page with 2 bars, log in and register.
Upon clicking, there’s a visible transition to the next page. Instead of a simple and clean slide across, there’s some jumble up of previous page graphics, sometimes appears upside down before going to the next page.

The endpoint is ok, just the transition looks very ugly especially since it takes a 1-2 seconds, its highly visible.
Does anyone know what may be the issue? No errors show up on devtools.

Maybe try the solution at Beta 14 ng-hide/show