I assume you copied and pasted your INI files... don't know if this has anything to do with it, but your Fallout4.ini has two "uExterior Cell Buffer" lines in it. The one with "36" I believe is the default INI value; however, I believe the game is minimum hardcoded to 47. Just noticed this at a glance, and thought I'd mention it. Have you tried putting back in clean/default INI files (i.e. deleting and running the launcher)? Something worth trying if you haven't yet.