In the past week on the show unread post since last visit page I almost always got 0 unread post however if i click on show all unread messages it brings them out properly...
For me, it works as expected. And I use it on a regular basis...
Maybe it is due to that i am not using it that regularry... When i come here more than once a day it works fine, but if I am not here for several days it doesn't want to work...
It's working for me.
But keep in mind that once you have opened an item this is removed from the list.