When creating a material and then overriding the textures on the new material instance, the unused textures are still included in the cooking process.
1. Create a blank project with starter content
2. Create a material instance from a material
3. Override the texture within the material instance
4. Save the project
5. Cook the project and review the logs
Expected: The unused materials shouldn't appear within the cooking logs.
Results: The unused material is in the cooking logs, along with the updated texture for the material instance.
There's no existing public thread on this issue, so head over toAnswerHub just mention UE-21544 in the post.