I don't have Nvidia cards but I checked using AMD Eyefinity with two monitors and see no issue on my system. However, I have forwarded your problem/question to Stardock Support Team for their assistance. Please keep an eye on this thread for any updates. We appreciate your feedback and patience.
While waiting it is best if you supply us with these informations.
- Windows 11 full version and OS Build number. Please use Winver.exe.
- Deskscapes full version number.
- Nvidia driver is on latest driver version? Please include version number.
Thank you,
Basj,
Stardock Community Assistant