I did not have an S on Garen before the game, i was also eligible to earn another chest this month, however i Earned an S and got nothing. in addition i went to champions and Garen now has a "chest earned" boarder around it. it registers everything, except me actually getting a chest. I've been working for a week and a half for a new chest, and to earn one and not get it is highly disappointing.
RUTrunks1 voteshave pictures in a downloads folder, dont know how to upload them here
TheLastShadow451 votesYou might have already earned a chest on him in the past(If you were with a premade group their S ranks count for you as well) and you can only earn one chest per champion per season.
RUTrunks1 votesno i checked before the game. i had no chest and specifically played Garen
to get one, same thing happened with Darius