I chewcked my notifications, you know the list under your avatar and you click the little down arrow to see all recent replies, etc., just now, and this topic was in there but when I clicked it had no activity for 2 months:
It was the 1st post that the notification took me to.
There has been an update on the forum in the last day or so, there are new functions in the menus I can view and a lot of things look new and different as well. But I don’t know if that explains it.