Zoe disappearing from champ select

Came across a bug the other day where after banning phase, Zoe would just disappear from champ select being unable to be picked in that game (for me). Before you ask, no she didn't get banned XD. Don't really know what caused this, or what the circumstances were... Just tweeted it out when it happened and just now remembering I should post it here... If anyone else has experienced this, drop a comment with a link or something with your experience!