I play the game since 2014 and I never had this before: some obejcts or many npc's of the game become visable after you step into a radius around them (sometimes you have to wait a few seconds). I made a few screenshots as an example.
You should have edited your first post instead of creating another thread.. the bug forum is already flooded enough with threads that don't need to be here. Double posting just makes it harder to find and understand your issue and everyone else's.