So sorry, an oversight on my part....

It's a fairly High End system:

• Windows 11 Pro 21H2 (All updates current as of 01/28/23)
• Intel i-7 7700k  4.2 Ghz
• 32 Gigs DDR5 RAM
• NVidia GeForce 2080i
• Acer EI491CR 49" 32:9 Ultra-Wide Curved monitor running at 3840x 2160
• 1Tb boot drive with 70% free
• Fences Version 4.0.7.2

Not to sure of desktop icon sizes, as I use the ctrl^scroll wheel on the desktop to size them to my liking*

*as you know, when you hold the control key down, on the desktop, and use the scroll wheel on the mouse, you can scale the icons, making them larger and smaller. 

That said, If I make them quite large, make that VERY large, the fence will move the icons to a single column, which I then have to use the scroll bar on the fence to move the list of icons up and down.

You can see how large I have to make the icons to get them to convert to a single column, as compared to my original photos 2 posts up.

As instructed above, If I select "Large" (Desktop/Right Click/View/Large)  icons, the icons in the fence file into a single column, with all icons showing.  If I select Medium, they go into 2 columns, with the right column completely hidden, to not even know they are there.  There is no "scroll left/right bar" at the bottom or the top of the fence.

If I select "Small Icons" They also go into 2 columns, however I can see about 20 pixels of the icons in the second column

I have taken 3 screen captures, with the right click menu opened, showing the current selection for that screen capture.

This does not to me, seem to be a matter of my particular setup.  I had this same problem, while running Fences on Windows 10, with a different graphics card and monitor / resolution.  I remember making the icons large, and holding Ctrl down, while scrolling the scroll wheel back to reduce the icons, till they went into a single column, and then moving the scroll wheel forward EVER so slightly, till the went back into a single column, and not were cut off.  I have just had to deal with much larger icons than I like, as I do like the functionality of fences.  It was just a couple days ago that I decided to finally post about the issue.

Sorry, the scaling is set to 200%.

Just today Fences crashed, and I had it send the error report.  for "Name" field on the crash report, I used the username I use here on the support forums: JohnWPB. 

Yes the icons appear correctly at 100% scale.

Isn't the point of Stardocks products to customize Windows? Should it not be capable of adjusting the columns based on the screen resolution or scaling, no matter what that might be?

I think I have an idea of the root of the problem. If you put too many icons in a fence vertically a scroll bar automatically appears so you can scroll the fence to see all of the icons. So something triggers if too tall then add scroll bar kind of thing. This does not occur however if icons are to the right in another column. There is no scroll bar. Therefore it appears whatever the trigger is for vertical was not added in the same way for anything that would occur a horizontally.

Once that is remedied and you can trigger that the horizontal area has been passed AND there is enough room vertically, THEN DO wrap the icons