When i installed frigus' CBBE tera, i noticed that two of these armors had this strange flickering black squares on them under ENB only.

These armors are Graceshed and Necrosin. Additionally, Asianboy's UNP versions also have this issue.

ENBs tested: seasons of skyrim, project, true vision, unbleak, realvision

Only realvision has no issue.

http://skyrim.jpn.org/images/425/42548.jpg

http://skyrim.jpn.org/images/425/42547.jpg

i dont know why this is causing the flickering squares.

*headache*

Probably it's mod related. You should ask at this forums too: http://www.gamesas.com/forum/183-skyrim-mods/

Mod issue, moving this to mods