others will say this as well....it's your gamma settings. If you use gamma correction in your render, and you should, you need to set transparency maps to a gamma of 1.0. If you don't they will look whispy like that is affects bump maps as well so they ned to be set to 1.0 too.

W10, Ryzen 5 1600x, 16Gb,RTX2060Super+GTX980, PP11, 11.3.740