Weird behavior with Start11 (taskbar enhancement) and multiple windows/monitors

https://www.dropbox.com/scl/fi/79abb6u3gfc48289i5758/Screen-Recording-2026-03-26-104057.mp4?rlkey=cgs01o3bg7m8yn89t6ev7b90s&dl=0
from Stardock Forums

I have Start11 installed. I have 2 monitors. I have Vivaldi browser with 3 windows open (1 on the main monitor and 2 on the secondary monitor). If I enable taskbar enhancement in Start11, I get weird behavior when I bring up the taskbar (on the main monitor) the 2 windows on the 2nd monitor briefly appear on the taskbar and then disappear. See the linked video recording.

start menu products
1,312 views 9 replies
Reply #1 from Stardock Forums Top

Hello,
Sorry to hear you are having issues. Need few more information.

  1. Windows 11 full version and OS Build number. Please use Winver.exe.
  2. Start11 full version numbers.
  3. The issue appear only with Vivaldi or any multi open windows such as Explorer?

Thank you,
Basj,
Stardock Community Assistant.

Reply #2 from Stardock Forums Top

1. Windows Version:  25H2 (Build 26200 8037)

2. Start11 2.6

3. It also happens with explorer.

Galactic Civilizations III
Reply #3 from Stardock Forums Top

Please try, uninstall Start11, reboot immediately (important), download latest version (v2.7 Beta) available in your account product download page: https://store.stardock.com/myaccount/products.  Install it, reboot immediately again. Retest it and report back.

Thank you,

Basj,
Stardock Community Assistant

Reply #4 from Stardock Forums Top

It still happens with 2.7

Reply #5 from Stardock Forums Top

Is the issue specifically only with that one app?

Reply #6 from Stardock Forums Top

I have reproduced it with Vivaldi browser and File Explorer.

Reply #7 from Stardock Forums Top

I can't reproduce your issue on my system with two screens, tested with Explorer. Perhaps something is running in the background causing the issue. Do you have any other application that also change something on your taskbar? Apps such as DisplayFusion, StartAllBack etc. 

If none, would like to suggest, try Clean boot steps: Refer here for steps: https://support.stardock.com/space/SHC/1334935592/Start11+Clean+Boot. Do note that Clean Boot need to be done with some care. Try it and report back.

Thank you,

Basj,
Stardock Community Assistant

 

Reply #8 from Stardock Forums Top

I have DisplayFusion running, but I don't think that is the cause of the problem. I think the problem was that I had autohide enabled for the Taskbar and in Start11. I turned it off in Taskbar and everything is back to normal.

Reply #9 from Stardock Forums Top

Yes, you need to turn off Windows autohide and only use Start11 own autohide function, for it to work properly.

Thank you,

Basj,
Stardock Community Assistant