I have among the icons on my shortcut bar one for the command "Close all." If you right click on "Close all" you see the three standard items on the context menu: Open, Open in a new tab, and Open in a floating window.
These three are meaningless for the command "Close all." You can't open "close all" at all, let alone in a new tab or a floating window. These three items should not be available on the menu for commands where it makes no sense.
Other examples of where some of those commands don't make sense or are not behaving the way one might expect them to:
Facilitate Serendipitous Discovery: all three do make sense in this case, but Open in a floating window is not working that way. It opens in a new tab.
A shortcut to any saved Layout: Open makes sense and is the only one of the commands that works; it doesn't make sense to open a layout in a tab, since a tab is something that's within a layout. Indeed that command does nothing and should be removed. It might marginally make sense to open a layout inside a floating window, but only if that layout is made up entirely of tabs within one window; however layouts can contain floating windows, so rather than confuse the issue, this command should probably be removed. It doesn't do anything currently.
A shortcut to another Windows application (which you can drag to the shortcut bar from Windows explorer). You cannot open these within a tab or floating window in Logos, and those commands on the menu do nothing, so they should be removed.
There might be others. These are just the only ones I happen to have on my shortcut bar that have weirdnesses.