Start11 v.1.25 on Dell Inspiron 5379, 8.00Gb RAM, Intel core i5, Windows 10 Home, version 21H2OS, build 19044.1889.
I have added Control Panel to the quick access side shortcuts in the right hand panel. When added as a menu, it will only open about half of the items - eg Date and Time, Keyboard, Taskbar and Navigation - can provide a full list of 20 items if necessary. The remaining c.20 items will not open through the menu. When Control Panel is added as a link, it will not open at all.
Also Devices and Printers is added as a link, but this will not open either.
This is the only problem I have had with Start11, which I will probably buy - was using Open Shell, but it was causing the taskbar and start icon to freeze occasionally.