There was a problem authenticating of this product (Tom Clancy's Rainbow Six: Siege)

Welcome, Rezzy. There is a problem, bought a sage at the launch issuing a snous "There was a problem authenticating of this product." The game bought in EGS is tied with a yuple. Both are new. But there is a sidge before that, the current in the stima and is connected with another ac in the yuple. Pointed the way to the game, tried to run, issued "Failed to validate game files. Please try re-installing the game". Cho to do? Put a second copy in another folder?