Inbox is empty.

When I click on the inbox there is nothing there, just white empty space. It's been like that since the begining of the beta.

Sometimes I see some dots at the top and then next to the inbox icon but as I said nothing happens when I click, the dots just go away.

I'm guessing this is people trying to add me aafter games. I've seen it a few times after some cool/funny matches so it's unfortunate that I was never able to reply.

Does anyone know what causes this bug?