Hi, this is my first bug report here, so if any more information is required please let me know. I have a fragment shader that writes to some color attachments. And one of them has format R8G8_UNORM. I declared it as a vec2 in my fragment shader. Now when setting the vk::PipelineColorBlendAttachmentState::colorWriteMask for that attachment to vk::ColorComponentFlagBits::eR | vk::ColorComponentFlagBits::eG (as its logically supposed to be since I only have a red and a green channel), that color attachment doesn’t get written to. If I set it to vk::ColorComponentFlagBits::eR | vk::ColorComponentFlagBits::eG | vk::ColorComponentFlagBits::eB | vk::ColorComponentFlagBits::eA; everything works fine. Could this be a driver bug?