Not receiving mail notifications since January, unless and until I don't open the app, I don't get to know about the mails I receive. I have 3 gmail accounts and the problem is same with all, which made me realize its an App issue. This bug is making me lose out on important mails, which is not good at all. I thought the next update will fix the bug but to my dismay, I am still facing the issue. I hope Google fixes this as soon as possible.