Just today at 7:43pm est. I opened all of my PM notifications, and it still says I 1 PM notification. Not like it's really problematic, so it's nothing urgent.
This occasionally happens to me but it only stays for a while.
You prolly have some PMs set to tracking instead of watching.
Go to your messages and change up those settings.
Hey, it worked! Thanks Nyran!
Nyran: Don't sweat it kid.
Looks dramatically off to the distance
Nyran: it's all part of the job....
Flies off to fix double posts as @Corex11 watches him go in awe