Close window, minimize and fullscreen buttons missing

[atls]

atls last edited by

LVL3 (core: 80.0.4170.91) (x86_64)
macOS Version 12.0.1 (Build 21A559) 12.0.1 x86_64

After updating to the latest version whenever I go to fullscreen mode, the "traffic light" buttons go missing. They are there when not in fullscreen. Any one else having this problem or have a fix?