I'm unsure if this has to do with any other mods I have running but I doubt it as a vast majority of them are client side and don't affect other entities, the exception being a mod i have for more wood variants, however, this has happened prior to getting that mod. Every now and again when I start up the game my dragons loose their textures and end up with a very odd white texture instead. It isn't a major problem since it doesn't affect anything else but their appearance, but in doing so it sort of ruins the immersion a bit!

Can you replicate this in a clean environment and post a game log?

didnt reply, gonna assume u fixed this