Hello,
Sorry to hear you are having issues. First, to make sure Start11 is properly install,p lease 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, need more information.
- Windows 11 full version and OS Build number. Please use Winver.exe to get these number.
- If the issue appear, does restart explorer.exe does the start button align itself properly?
- Do you have any other 3rd party application running that also change your taskbar. Application such as DisplayFusion, StartAllBack, ExplorerPatcher etc.
Thank you,
Basj,
Stardock Community Assistant.