Hello,
Sorry to hear you are having issues. But, I am not sure Start11 move desktop icons. How you determine that Start11 v2 is doing it?

Thank you.
Basj,
Stardock Community Assistant.

Strange this is the first time I ever come across such report. Do you have any other 3rd party application that dealing with Start Panel, explorer and/or taskbar installed in your system? That might cause compatible issue with Start11.

Also, please try this, uninstall Start11, reboot immediately after. Check it the desktop icons not moving when Start11 uninstalled. If it is not moved. Redownload Start11 again from your product account page. Reinstall it. Reboot and see if the issue return. Report back.

Thank you,

Basj,
Stardock Community Assistant

I think something else is managing your desktop icons which react to Start 11 taskbar size. Do you have any software that manage your desktop icons? Some application do introduce their own desktop overlays. Do you have application like Displayfusion or something like 360 total security which introduce its own desktop organizer. Refer : https://forums.stardock.com/494957/get;3749819.

Thank you,

Basj,
Stardock Community Assistant

Please try cleanboot : https://support.stardock.com/space/SHC/1334935592/Start11+Clean+Boot

Thank you,

Basj,
Stardock Community Assistant

https://forums.stardock.com/523854/get;3909218

Had something similar here but got no response.

When the taskbar takes more space it will reduce space for icons.

Windows may opt to move them to a display with space.  If you move them back is it then all happy?

Also do you have auto arrange icons enabled in Windows?

Finally how many icons do you have and what configuration is your monitor setup in terms of monitor placement and resolution?

Which side is the primary monitor?

As a quick test (not a solution just debugging the issue) if you swap the positions in Windows does the problem stop?

Just read this on Windows Central; not sure if this has anything to do with your issue, but it's worth a look.

"Windows devices using more than one (1) monitor might experience issues with desktop icons moving unexpectedly between monitors or other icon alignment issues when attempting to use Copilot in Windows (in preview)."