[CLIENT] Match doesn't finish properly, lobby not opening.

Today I had a game where our team won, but my match window never closed.

The nexus was destroyed, but the in-game voiceovers about the enemy's inhibitors respawning continued to play. Champions were just standing around the destroyed nexus and no part of the user interface in-game was shown, apart from the Esc menu. I had to exit the match window through my task manager. Upon doing so, the honour screen became available and the rest carried on as usual. Not game-breaking, but still a pesky bug.

This has occurred twice for me, though the other did not carry through to the lobby when the match window was shut. Due to the rarity of this, I haven't been able to track its cause. I believe some people expressed having the same issue on the NA boards a few years back.