Neck seams with every skin texture mod?

[ZeroListGram]

I'm not kidding. Ever since I updated my PC to a better one and use 4k skin textures, I get neck seams with every single texture mod I ever tried. Yesterday I wiped entire game off with all mods related to Skyrim, redownloaded and reinstalled everything, and I still have the exact same issue.

 

I'm using Rudy ENB for vanilla, but turning it off doesn't make a difference, so I'm assuming its not related to ENB. I tried a lot of skin textures, all of them had seams, including those that I had no issues with in the past.

 

I tried Mature Skin, SG Skin Renewal, Real Women of Skyrim, True Daughters of Skyrim, Pride of Valhalla, Unslaad seamless, Real Girls, Leyenda, Fair Skin Complexion, and a few others which names I forgot.

 

I use the basic UNPB body. I tested with the default textures that come with the body, but I still had neck seams. I'm near sure I'm going mad.

 

Some people suggested that it was just "minor neck seams" which "aren't even noticeable from a distance", but they aren't -- these seams are perfectly noticeable from a conversational distance.

 

What could be the solution to this? I've seen answers saying that it's just a part of Bethesda games and you can't get rid of them entirely -- fair enough, I just want my neck seams to be like others (which I consider non-existent).

 

I'll post some pictures later if that'd be of any help.