I've just installed SAB on a fairly clean install of Windows 11 (recovering from a catastrophic disk failure) and am experiencing an odd issue; with the enhanced classic start menu enabled, I'm unable to unpin items from the start menu. Both the option to unpin from start menu and 'Remove from this list' are available when I right-click on items; if I click either one, nothing happens. If I uninstall the associated program, the pinned item remains on the start menu; the icon just goes blank, and fixes itself if I reinstall the program. If I go to the folder it tells me the shortcut is in, I can delete the shortcut from that folder and it remains pinned. I've been mostly trying this with one particular program that I can easily install and uninstall but I've tried unpinning other pinned items and they similarly won't budge. I can add new pins but they cannot be removed.
I have attempted uninstalling SAB, including removing all settings and my registration. When I reinstall and re-enable enhanced classic start, the pinned items are still there. They are not present on the default start menu. This appears to be independent of the 'store and display recently owned programs/items' settings. I'm absolutely tearing my hair out over this.