After install and a little customization, I noticed that clicking on the START menu did nothing, opens nothing. 

Here's what I have figured out. If I enable a START menu style and let Start 11 enhance the taskbar, the START menu is disabled. I click on it and nothing happens. 

If I give the START menu a style and don't enhance the taskbar (leave it off), the START menu works and it works with the style I picked.

If I don't give the START menu a style but I do enhance the taskbar, the START menu works and displays in a default Windows 11 format.

So - I can have one or the other. Either style the START menu OR enhance the taskbar. Not both.

While troubleshooting, I ran the purge uninstaller and reinstalled START 11. Problem remained.

I have three computers and the other two don't exhibit this problem.

Thanks!

Running Windows version 21H2 (OS Build 22000.856)