Current driver for Geforce GTX 1070 is 465.89. In game settings on Ultra and never had this problem before.
Best way I can describe the issue is, appears each unit at a random time will have an elongated shadow that stretches across the screen blocking anything under it. Will slowly get larger and eventually overtake anything I’m looking at to where I can’t see anything except for the unit health bars and a triangular shaped block of color.