Appx-Client scrambled display on Startup Login

Occasionally when the new client is started, the login screen appears, but is scrambled, perhaps shifted up and left a bit, leaving a part of the first placement and hiding some of the login fields. Minimizing or Maximizing the Client Login screen, then Restoring it will set it right.

Try turning down the video acceleration setting on your computer.

Right Click on your Windows Client Desktop > Properties > Settings Tab > Advanced... > Troubleshooting Tab > Hardware Acceleration slider. Click it to the left, perhaps all the way to "None". That should straighten out the display. If it doesn't, call Appx Support.