I was playing an ARURF game completing some quests after midnight tonight and won the match. It should've completed some quests in order to get more event items.
However, my in-process event quests were seemingly wiped out and my "Vs. Event" Client screen now has me choosing between Garen and Darius again, even though I've already chosen Darius weeks ago, AND there was still 24 hours left to complete the remaining quests.
Trying to choose Darius again doesn't work and doesn't go back to the Darius homepage. Please help, trying to complete the missions before the event is up...