So, it happens on certain apps more than others, but one ends up with a generic Windows icon in the Start11 taskbar for various apps, rather than the one intended by the app's creator. (I'd like to say they are all Microsoft apps but cannot swear to it.) As mentioned in my subtitle above, this problem still occurs with the latest version of Start11 installed, and having restored a correct Start11 configuration backup (everything looked right when the backup was made). I wonder if there is a fix or a workaround?
Curiously, the same thing happens in the stock Windows 11 taskbar, and the fix which is most often suggested is: stop the explorer process (kills desktop), delete icon caches (hidden in a subdirectory of %username%/Appdata), restart File Explorer (brings back desktop). This, however, does not help with Start11. I'm not even sure whether Start11 uses the same icon files as Windows.
Does anybody have any other ideas? Why this is happening or how to fix? Is Start11 suffering because of the icon problem with the Windows task bar? This Start11 bug along with the one which assigns the wrong icons to various apps can make the taskbar pretty useless at times. (Perhaps those two bugs are one in the same -- it makes sense that they might be.)
I really like Start11, by the way. It has saved me from the awful Windows 11 Start menu. I don't mean to trash talk about it.