Video of problem happening: https://www.youtube.com/watch?v=E4oy8tqaYs0 My set up: Ubuntu 18.10, AMD Ryzen 2700X, RX Vega 56 This is the workaround that worked for me: * Beyond adding "R600_DEBUG=nir" to game launcher options (in steam client), also start "Steam Launcher" in a terminal with "R600_DEBUG=nir" environment variable set. And it will work. When bugfix is published let me know to test it.