Hi Tom
yeah, thats what i finally did too, i never had such a problem before, it was like the texture came out of nowhere. After creating a new file and after i merged all the objects into it, the problem was gone.
Very weird, not even Autodesk support could tell me what happened.
Well, i should have posted here after i fixed it, but i totally forgot, so for all the ones who might get into the same problem, Just create a new file, merge objects and thats it