Missions are blank?

I logged in, had my FWOTD and the daily snowdown mission to do. i do a nexus blitz cause might as well easiest way to get them both, and yet it didnt give me them? I log out of the client and back in now ALL my missions are blank.

Hey riot if you'e gonna make us buy missions for exclusive content, maybe make sure they work 100%? EDIT: Idk why or how but suddenly a shit ton of loot dropped and its showing missions again???? It was shortly after leveling up.