I ran the purge and reinstalled, but it didn't help. The folders still appeared on the Start11 menu but not the Windows Start menu. Only Windows Ease of Access appeared, not Tools, System, PowerShell, or Accessories. Obviously Start11 was not the problem.
When I clicked on an app in the Windows Ease of Access folder and told it to open the file location, all the folders were there so I know that was not the problem. That gave me an idea. I know that Window stores Start Menu items in more than one folder. I created shortcuts for the 4 missing folders, then opened the AppData\Roaming\Microsoft\Windows\Start Menu\Programs folder and copied the shortcuts into it. I opened the Windows Start Menu again, and there they were, so that fixed the problem. Apparently Start11 could find them in the ProgramData\Microsoft\Windows\Start Menu\Programs folder, but Windows couldn't. Must be a bug in Windows.
I use Explorer Patcher, a GitHub freeware project, as well as Translucent Tb freeware in conjunction with Start11. Explorer patcher allows me to center the Start Button and use a Start11 custom icon with it, which Start11 won't do. Explorer Patcher also fixes the problem Windows 11 created that resulted in the Tray Clock W Class Not Found Error, so I can use Atomic Alarm Clock on the Task Bar, and Translucent Tb gives me 100% transparency. They all seem to co-exist without any conflicts.
I also wanted to let you know that I use Deskscapes on this machine (an Intel 11th Gen i9 16 core processor) and have installed more of your Dreams than anyone else's. I really admire both your creativity and your prolificity.