Can't Reconnect to Games

I don't know if It's me being dumb or what, but my game kicked me out of loading screen saying can't connect to game, but after that I reloaded the client. Then the game works like I was never even in a game, I could join a new game, but I couldn't reconnect to my old match. Then I get a low prio que. Is this a buy I can fix? Please Help. Is this a common bug? It was also a ranked game, I don't know if that info is important, but I thought I should mention it.