@z64, still not working.
I've attached a video.
You'll see the cursor changes to the four-way arrow as expected. But as soon as I start dragging, the cursor changes back and the item doesn't move.
I'd rather not enable devtools, unless it becomes absolutely necessary, because I've noticed when I do that Safari purges all my cookies and I have to re-authenticate to every site. (not sure if that's a bug, or expected security behavior)
Again, I did try reloading the page with content blockers disabled, but that doesn't appear to be the issue. (I do run the Stop the Madness extension, which does a lot to mess with sites)
For what it's worth, the ability to re-order Lenses in the Kagi settings UI works just fine. I notice that UI changes the cursor to a hand, not the four-way arrows, so it looks like a different implementation.
Additional data point: I do have three-finger drag enabled in Mac OS Accessibility settings, so I don't have to press the trackpad to drag items. As an experiment I tried disabling that, but the behavior is the same--as soon as I start to drag the selected item, the arrows revert back to the standard cursor.