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 details.

1. Windows 10 or 11? Also need its full version and OS Build number. Please use Winver.exe to get these numbers.
2. Start11 full version number.
3. Start11 Enhance taskbar turn on or off? Note: Enhance taskbar option only available on Windows 11 system.
4. Issue on taskbar only? Start menu appear correctly? If so, what in the taskbar area don't change?

Thank you,
Basj,
Stardock Community Assistant.

Need Windows 11 full version and OS Build number. Use Winver.exe, you will get something like this.

Do you have this setting setup properly?

If that was set properly, need to know if you have any other application that also manage/change your Start menu/taskbar? Application such as DisplayFusion, StartAllBack, WindHawk, OpenShell, WindowPatcher etc.

Thank you,

Basj,
Stardock Community Assistant

nope i don't have any other apps that modifys taskbar

When i enable the personnalized start menu icon, the button didn't change either

And also anytime i have Start11 open,  Windows Explorer opens itself

Please try clean boot as I've requested above.

Thank you,

Basj,
Stardock Community Assistant