Happens on one computer, any theme; other computer is fine
I have a frustrating problem with the taskbar in vertical configuration. The system tray icons are pushed down, which pushes the clock down, which is then covered by the notifications icon. See the linked screen-grab. I can fix it temporarily by moving the taskbar to horizontal configuration, and then moving it back. But it messes up again, e.g., when it is resized or new task tray icons are added. This happens on my work laptop. My personal laptop does not have this problem at all.