Cant see anything glitch

Was in game and this happened, no map, time, abilities, items, stats, etc. I had to leave and restart my league and that fixed it and I luckily didn't get a 20 min wait. Everyone that game complained about how the game was a bit laggy and I just wanted to make u guys aware of the bug :) this is the first time this has happened to me btw.

P.S, I love the game ;)