Tatjana Flade @Tatjana21 via twitter: J. Lipnitskaia missed awards ceremony b/c she went back to hotel and did not know that awards came at the end.
I personally don' believe the excuse, but I suppose it's not far away from the truth. Yulia might just rushed back to hotel after her horrible skate (that's the thing I would do if I were her) and Eteri was with her. There were still 4 hours before ceremony so they would have enough time to come back. They might not be accompanied by any official as the games were still going on. Yulia had a bad time at hotel - I would be surprised if she had a good one - and Eteri was there dealing with her. Both of them forgot there was still things like awards ceremony. It might be already too late when the officials found they hadn't come back to the arena.