This is odd. Whenever I go to this thread while logged into my admin account, I get an immediate “You were logged out” error dialog with a Refresh button. Clicking it (or pressing Escape) returns me to the previous topic list screen.
I first got this when trying to edit a post from the topic, and that post remains open for editing (in the second or two before I get the dialog).
Logging out manually and back in didn’t make a difference. Nor did replying to another post.
It’s not the end of the world, but is a little annoying. The topic remains accessible to other users as far as I know.
Anything I can try to fix it?