Hextech Chest Bug

Yesterday my "Next chest available" came up again, but I was sadly unable to secure another S. My client thinks differently though, and now says "Next chest available in 6 days" and has the third chest icon colored-in, despite my not having received a new chest yesterday. To date, I've only received the free chest and two earned ones.

TL;DR: Client timer & icon thinks I got my third earned chest yesterday when I didn't.

Honestly, I don't really care about my own loot, just letting you know in case it happens on accounts that don't check like I did.

Tech specs: I'm on a a Mac and did get crazy frame dropping and queue-craziness yesterday afternoon.

Cheers!