Hello,
Sorry to hear you are having issues. Please try, uninstall Start11, reboot immediately (important), download latest version available in your account product download page: https://store.stardock.com/myaccount/products. Install it, reboot immediately again. Retest it and report back.
If the issue still appear, we need more information.
- Windows 11 full version and OS Build number. Please use Winver.exe to get these numbers.
- Start11 full version number installed.
- How did you usually pin an app to your taskbar?
- Since it used to be working, what recently changed? Do you have recently installed any other application which add or change something on your taskbar. Some hardware manufacturer add their own software that do this. Or perhaps, other 3rd party software that change things.
Thank you,
Basj,
Stardock Community Assistant.