asstofstmatts

At the web host’s suggestion, I cleared the browser history and cache, and rebooted the browser. And it WORKED! I’m dragging and dropping normally now.

Same problem here—drag and drop quit working when I updated to WP 5.6.
The support person at my web host does NOT have the same problem, so it seems to be a compatibility issue on my end. But I haven’t been able to find it.
I see that some posts above are marked “resolved.” Anyone have a solution to the “updated, and lost drag and drop function” problem?