Something odd on Community pages & Notifications!

Has anyone else noticed odd things going on, on  the community pages, on the first page there will several posts with no views but have replies? Many have no time but shown as latest? In notifications I know several of us have some sitting there that we can't get rid of, but I am not getting notifications when I should be, from posts liked, answered, mentioned. All this happening since last night.

I have looked in my settings and everthing is ticked the same as it always has been.