I copied the link to Public Discussions under SITS to my Sandbox the other day and now somehow in the copy of Public Discussions in the Sandbox it now has a copy starting at QDL, the beginning of the Root Directory, instead of just Public Discussions. So under my Sandbox copy of Public Discussions, it starts with and it has a copy of the Sandbox under that. I think it's a recursion, so I'm guessing there's an infinite series of those. Maybe that's why the Menu won't open. I tried to open the Menu of that Public Discussions post in order to edit it, but I couldn't open it.
Now I opened the Public Discussions post itself and then I was able to open all of the menus. So I copied the original link and tried to paste it in above the other Public Discussions post, but I got a message saying a link to that post is already posted on the page. Then the other Public Discussions post returned to normal, like the original post under SITS. But then I couldn't open the gear Menus again and now it shows the Public Discussions post the same way as before, shown up above.
Well, now I was able to open the gear Menu before QDL and I deleted the Public Discussions post copy. Now I'll see if I can get another copy that works right.
Yeah, it seems to be fine again now.
I guess the problem started when I went to the original Public Discussions post under SITS and deleted one of the subposts. Then I went to the copy in my Sandbox and the above problems occurred.*¹⁸³⁶⁵