This happens when I have several tabs open and one is highlighted, that is, the focus is on that folder.  Clicking the "+" on the tab bar opens a new tab in the folder that is highlighted, except when the highlighted folder is Home on Windows 11.  When the focus is on Home, nothing happens when I click "+".  The attached image illustrates the situation.

I vaguely recall that I used to be able to open a new tab in Home.  This is very useful since the purpose of the Home folder is a launchpad to frequently used folders.

I purged and reinstalled the latest Groupy2 and the problem persist.

Thanks!