Solved Drag & Drop into folders on the Taskbar problems.

This is a really weird bug and I'm not good at explaining, so I hope this makes sense.

I updated Windows 11 the other day (2025-11 Preview Update (KB5070311) (26200.7309)) and now the drag and drop into folders open on the taskbar isn't working properly.

If I have 2 separate folders open, I can drag from folder 2 into folder 1 (from the screenshot example "downloads into pictures"). but I can't drag from folder 1 to folder 2.

If I have 3 or more folders open, I can't drag from folder 1 into any of the other folders. If I try to drag from another folder (from the screenshot 2 example "screenshots into downloads") it will ignore the middle folder(s) and just open folder 1 "pictures" to drag into. And If I try to drag from folder 2 "downloads" to folder 3 "screenshots" and it just opens folder 1 "pictures"

I've never had a problem till that update so I'm guessing this is a case of the Windows update messing up and me having to roll it back to the previous update? But I thought I'd ask in here to see if this was a known thing or if anyone had any ideas.

ETA: I just tested it on another user account and it's the same issue on there too.

ETA 2: This doesn't happen and it works like normal if I set the taskbar to always combine the taskbar buttons, which is annoying.

I asked CoPilot for advice as a last resort. They suggested that it's: "The OS is mis‑registering the “active drop target” window. Instead of updating to whichever folder window you hover over, it keeps defaulting back to the first one opened."

Their workaround was to keep the taskbar buttons combined (which is unhelpful). and to hope that Microsoft fix it later with another update.

An update to this thrilling saga, after 12 days.... it's fixed itself? Didn't do any updates, didn't change anything, barely used it for the past 4 or 5 days, I tried it today and it's working fine.

So, solved, I guess?