Joining Matches BUG Patch 5.7

Username: Ecripter Bug Found: Date of 5.7 release Bug: After downloading patch 5.7 and ever since I've been experiencing a bug when joining a match of league of legends. When I join the lobby it freezes, I don't see anything but the home screen then after around 30-60 seconds it catches up and I'm in the lobby. This is extremely inconvenient especially when I am first pick and I have to ban. I haven't tried reinstalling my client encase there is another solution or such.

All Help is appreciated, Thank you