As far as I've seen there are five new mobs that show the bug:
- Chasm Stalkers (warp stalkers) in Vashj'ir
- Pyreshell Scuttler crabs (the biolucent crab model) in Vashj'ir
- Vale Howler monkeys in Northern Stranglethorn
- Temple Scarabs in Uldum
- Marsh Crocolisks in Silverpine
All but the Marsh Crocs are also the unique source of one or more skins :/
I've posted a bug report on the Cataclysm forums:
http://forums.worldofwarcraft.com/threa ... 7303222768
In it I've highlighted which are the sources of unique skins, so they're singled out as more important. I've also included all the older colour-changing mobs listed on Petopia, as some of those are also the unique source of colours (I've just re-tested all of them to confirm they're still colour-changers). Hopefully some of them will be fixed before the beta ends
