Cannot Select Champ Ban

[CLIENT] Just happened to me 10 minutes ago on EUW

Just tried to get into a game. I noticed I couldn't declare a champ as while everything else on the client was visible, there were nothing in the centre part of the screen. I had 5th ban - no-one else's bans were showing up, the icons up top were completely blank. When it came for my turn to ban, again there was nothing in the centre of the screen. The little hide/show arrow button at the bottom did nothing.

My timer ran out so I got a 5 minute wait. Tried again, exact same thing happened so now I'm on a 15 minute timer. Before attempting a third time I restarted the client, this time it seems to be working fine, though I should add that I don't have a ban this time around.

Screenshot attached