Occasionally on load, the entire scene is just red or black

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The skyboxes are unaffected when this happens, so it must be one of the other shaders (like the BRDF lut or something). The exact cause is unknown though, because it's a random chance to occur on every boot. Even though I'm familiar with the codebase at this point, I have no idea what causes it

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I had another instance where everything was black

Again, only the model was affected. Sponza with no IBL

One more boot after, and everything is back to normal

The exe and shaders aren't even being touched so there's probably some race condition in a compute shader, or some opengl code with undefined behavior. But compute shaders are more likely due to the random nature of this