Shadow flickering with Temproal AA anti aliasing on.

I’m wondering if there’s a way to fix the shadow flickering with Temproal AA anti aliasing on.

Because with the old FXAA anti aliasing on or without any anti aliasing, the edge of my objects become flickering and my character’s hair looks odd.

If I play with the new cine cam’s lens setting, the edge of my objects looks fine, but my character’s hair still looks odd which from my view port I see a lot of alias around my diffuse map.

BTW, I’m using poly plane hair method and UE 4.12.0.

Need help in urgent. please help. Is there a way to work things around ?