I don't even get the alert/event pop up for group pings like the TS restock pings. I do get them for things like new achievements. Also, for group pings, the browser tab doesn't even get the red box with the number in it since the pop up won't even appear.

Because of that, sometimes I may not even know I got a ping(s) until I look at my events tab. Very annoying when I'm trying to catch TS restocks >_>

It's not a bug, I think said it was a side effect when he fixed group pings alerts. I know it's annoying but at least it's better than not getting the alert at all...