GGXrd lobby glitch is a Guilty Gear Xrd combo video uploaded by tsdcs in 2015. This video showcases the high-level fighting game execution and advanced combo routing — the kind of Roman Cancel combos, dust attack routes, and instant kill setups that defines competitive Guilty Gear Xrd play. From the original post: "Problem 1: disconnect/reconnect messages are displayed for players when they aren't actually joining or leaving the lobby."
Problem 1: disconnect/reconnect messages are displayed for players when they aren't actually joining or leaving the lobby. Problem 2: they block part of the screen when this happens, making it difficult to see what's going on behind.
From tsdcs's YouTube channel