loginwindow display arrangement error on Fast User Switching

Originator:garretstand
Number:rdar://FB9153567 Date Originated:10 June 2021
Status:Open Resolved:Open
Product:iOS Product Version:15.0 Developer Beta 1
Classification:Incorrect/Unexpected Behavior Reproducible:Always
 
Activating the loginwindow via the fast user switching menu induces a display arrangement error and, with the first time the bug was encountered, a lockup of loginwindow for a few minutes. Once it resolves itself, the user profiles are misaligned on the screen. Once you switch back to the account, the windows are compressed to a small part of the screen for a second. Attached are pictures and video demonstrating the problem.

Steps to reproduce:
- Open Fast User Switching and select “Login Window…”

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