This still seems to be an issue with classic Icon size. It sure would be nice if that little bug could get sorted out.
Hello,
Sorry to hear you are having issues. But, I don't see the issue on my system. Refer a short screenshot below.

Might need to know more on your system to try to reproduce your issue on my system
- Your Windows full version and build number. Please use Winver.exe
- Fences version number.
- Monitor Scale factor (100%, 125%, 200%) etc
- Monitor HDR turn on or off?
- Issue on Fences or Portal Fences only?
- Any other details that might help.
Thank you.
Basj,
Stardock Community Assistant.