Guild of Writers

Yesterday I exported the age I'm working on. (I'd just added a few identical chairs duplicated from each other.) Now, when I exported it, the normals were fine, however, upon linking to the age, I saw that all my chairs had the wrong normals, the texture was on the inside! I opened up the blendfile today to see if the normals were wrong, but they're right... Anyone know why an object would decide to have the wrong normals all of a sudden, for no reason?

Thx, that helped, works fine now