possible problem with time filter of recent posts

Hello I'm having some curious behaviour when using Recent Topics tab. Show all since last visit or using any of the x hours work as expected, but when selecting week, month, year or show all options I can only see post from May 25 or older.

I was wondering how some discussion threads had gotten so long before I noticed them, but only noticed this when I replied to one post and then could not find from recent discussions anymore.

Cheers

It seems to be working normally again, weird.
I wonder if it's something with my browser, as I did restart since my last login.