I can't help but to notice every single time I see his necklace chain since I patched to v1.07, that it doesn't go around his neck anymore, it sort of goes through it.

Is this just me or is it a bug? It shouldn't be bugging me as much as it is, but it really is. x_x

I believe it depends on clothing - try to take that armor off and see what happens. I believe that when it has this high collar, the necklace would clip trough, so they put it like that

Ah yes, I just noticed that when I switched to my full set of witcher gear. Thank you. ^^