Originally Posted by JonNik 
This one though seems so weird and surreal I could not but assume it is some configuration/tweaking issue of the used Algorithm. It happens right next to your char and it weirdly seems to replace a larger with a smaller texture of not very noticeable different quality
(also happened to ground geometry very close)
That "cauliflower effect" is so noticeable that I have to wonder if it's not intentional. Perhaps the devs actually thought it looked cool
Personally, I wasn't bothered by it enough to consider it immersion breaking. It was more just a "wtf?" moment for me. I never noticed it in any of the ground geometry though. Only in foliage, and only in a few specific places.