If your Windows 11/10 icons are not displaying correctly, there could be several possible reasons for that. For example, if you are using the tablet mode, corrupted icon cache, custom icon packs ...
With a recent update, Windows 11 made it possible to enable taskbar icon ungrouping natively, but if you enabled the custom taskbar in Start11, you might want to do it through the Start11 app, too. To ...
Then, go to the “Customize” tab, click the “Change Icon” button, choose your preferred icon from the list, and click “OK.” ...