This probably isn't an actual bug, but at best, it's a huge, annoying oversight. If I scroll to the last (500th) message in chat, the only way I've found to return to the top without quitting the game is to scroll BACK through all those messages again. We really appreciate the expanded buffer, but along with that, the game really needs a "Return to Top button". Or a double-tap to return. Something to get you back to the top. Also, if I post a message in chat from anywhere in the message buffer, I stay at the bottom. After posting a message, chat's focus should really return to the top.