Hi, the GL_INVALID_FRAMEBUFFER_OPERATION error is not great, but it is not cause of the crash and shouldn't crash. It crashes in VRAM size detection code (which uses macOS API calls, not OpenGL) which should be unrelated to the OpenGL error. For now you can disable VRAM detection code by setting sk...

Here's a screenshot from GeekBench, just to show that the GPU is fully detected, including VRAM, in other apps:

Hi all I purchased Factorio on Steam today, and unfortunately I can't even open the game. My system: macOS 10.14.1 Hackintosh 'Mac Pro 5.1' Intel Xeon X5670 6-core (Westmere; no integrated GPU.) 48GB DDR3 AMD 7970 Ghz Edition (AKA R9 280X), 3GB. Metal capable. 6 x monitors When I open the game I bri...