Not really a bug, but I notice I have a lot of connection issues on Deadlock that I do not have on other games on the same night. I tested it on Battlefront II (I assume this is also a game demanding high bandwidth) without experiencing any lag right after rubberbanding my way through a game of...
It only occurs in Deadlock and usually on times were a lot of people are playing, evenings and the weekend. Would be an incredible specific issues if it is on our end