title: Scenekit some textures have a red hue
body: <p>I have a scene that has many objects, that all have different textures. For some reason 2 objects have a red hue to them, even though their textures have no red. You can still see the pattern in the texture, it just has different shades on red. (On the simulator the 2 objects have black and white textures and on device shades of red) Does anyone have any idea why this is happening? Other objects are working fine.</p>