Glad it's not just me. I was experiencing this phasing of scenery all over the place in Moria the other day. Also saw someone swimming around in mid-air inside the Inn in Bywater during the birthday quest, I noticed someone mentioned swimming in mid-air earlier. Looks like they have some things to fix...
Goreamir - 115 Captain | Celebourne - 95 Champion | Jinwe - 91 Hunter | Humblefoot - 77 Minstrel | Dorfus - 77 Guardian | Creonath - 58 Warden | Whippit - 40 Burglar | Stormcraban - 38 Loremaster | Thangadir - 37 Runekeeper | Jonly - 32 Beornng | Zongrul - 41 Bank