little bug with notifications on this site

over the past few days, I've seen posts from several days/weeks ago pop up in my notifications. also, watched threads don't always give you a notification on when a post is made.

 

Same, I'm subscribed to the update speculation thread, and I get no notifications for it. Same with other threads, like developer section response

 

This has actually been happening to me ever since they made the notifications a feature. I never said anything about it though as I just assumed that it must only be my machine messing it up as I have never seen anyone else complain about it before.

But yea, I only get some random notifications... about 25% of them really.