Been happening like the for me for a coupe of days.
Not being marked as read since Wednesday. Previously they'd be shown as being read having visited the alerts page, now each has to be visited.
Has anyone else's alerts been acting a bit strange lately or is it just me?
Mines all used to stay highlighted until I selected each one, but now they all grey out on first opening them.
Makes keeping track of all my threads a bit tricky.
Nor me.
Still highlighting "likes" and I'm having to hunt for the replies.
Not for me..
How odd.
It's still working fine for me this morning.
I had 5 alerts at 0730 and that number is dropping one by one as I read them (as opposed to yesterday morning when as soon as I opened the first alert the count disappeared) - and the unread ones are blue rather than grey (although I am 'colour illiterate' so don't read too much into that).
FWIW - I'm running Windows 10 on a home PC.