It seems that Armored Core V after missions likes to give the "F {PPU[0x1000060] Thread (Ac4SortieScene) [0x011ed0b8]} VM: Access violation writing location 0x0 (unmapped memory)" error message. The game runs fine and looks fine once the shaders compile. Make sure to enable Write Color Buffers. Once enabling RPCN and setting up an account that makes Armored Core V sometimes get past the forementioned error of PPU access violation.