The best place to get help with Winstep products is through the Winstep support email link:
https://winstep.net/support.asp
On my dock the system tray expander does not work.
Did you update Windows 11 to Moment 2 (Preview KB5022913 or KB5023706)? If you check your version of Windows (run>winver) it will be Build 22621.1413.
That's the probable reason for your systray and taskbar changes, not v. 22.7.