I've noticed that certain upgrade diagrams for some witcher gear isn't showing up where it's supposed to be. For example, when finding the ursine superior armor diagrams, the boots, trousers etc. are all found together in a cave in Velen according to a youtube video I just watched. However, when I find them on my game only the armor spawns and the rest is nowhere. It's extremely frustrating and I've noticed that other people have posted on the same video they were having the same problem but no one seems to have an answer. So I'm trying here and hoping someone knows a resolution.
Has anyone else had this problem when playing? Is there anyway to fix it?