InBox Not getting Private messages

Hi, my friend and I are sending private messages to each other via "Between you and ???" but it's frustrating because I'm not getting his messages.... Is there a limit do I need to delete the entire string of messages because I've reached the limit? Please help, This is the only way we can communicate..... Thanks Sherrie

You mean you aren't getting notifications for new messages on your inbox? Don't worry, this seems to be a general bug. There's an issue that doesn't make the red box to show up next to the inbox icon. Should be fixed soon