I've noticed this when using Windows Terminal (a Windows Store app), To launch it as administrator on a PC not running StartIsBack I can right click the pinned taskbar icon and within the jump list is the "Windows Terminal" menu, which I can again right click in order to get the "run as administrator" option. When running StartIsBack, right clicking the pinned taskbar icon does not display the Windows Terminal menu in the jump list, so there's no simple way to run as admin.