If you've unchecked the Mature Language Filter but it's still on then first look at your summoner name.
If it has special characters then your file may become corrupt.
The file can be located here:
C:\Riot Games\League of Legends\RADS\projects\lol_air_client\releases\x.x. x.xxx\deploy\preferences
(x = most recent number)
It's buried deep but the files here are the different accounts that have logged in on your computer.
There is shared and just your name. Opening the shared file ( shared_ ) should should a list of features.
- If the language is all funky then clear it out and enter this phrase:
Ctrl+S and relaunch the game.
This is currently how mine is setup and.. Well, I have tested it O.o
Worked for me
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