There’s a few nuances like this with OpenGL and Vulkan that you’ll find in the specs. Normally you don’t encounter them because the compiler by default aligns t

There’s a few nuances like this with OpenGL and Vulkan that you’ll find in the specs. Normally you don’t encounter them because the compiler by default aligns to certain boundaries. Then someone tries to get clever and uses a custom allocator or a packing directive on a struct, and suddenly your vertex buffer isn’t aligned any more. What I’m getting at is that it likely wasn’t a driver bug. The other drivers were just more tolerant of the incorrect behavior.