Ok, so I encountered this glitch for the first time ever. Once the quest Proving Honor is finished and you are tasked with going back to Whiterun, Vilkas is not present to greet me. No matter if I wait until day or go at night, he's never there to greet the player. I even tried doing the quest from start to finish over again and still bugged. He's just sleeping in his room and will not meet with the player to initiate the ceremony, and thus it glitches out. I spoke to him and he goes through his normal dialogue, but then just stands there. It's very odd.
Anyway, I've seen this glitch popping up on the internet before, but never quite like this. Did 1.9 screw this up or did I just run into a bugged game?