Hey dudes! I’ve upgraded to Unity 5.5 and found some strange visual bugs within realtime shadows for orthographic camera. WTF? How do we solve them? Is it new unity bug?
Wtf? This dark line looks like a pixel shadow from 1996!
Did you find a solution? I have the same problem 
EDIT: I’ve increased shadow bias and it worked (I know I replay late but I hope I will help people who had this problem recently)