Yeah, I mentioned in the Star Wars DE thread how some orange blotches could be seen on Mark Hamill and Harrison Ford's faces at times. Harmy said the actual discolouration was due to limitations of dealing with the official BD transfer, but those blotches are very clearly over-applied makeup. Filmmakers in 1977 weren't anticipating a future of Blu Rays and 4K, so some of these details weren't meant to be seen.
As I'm typing this I'm feeling even better about these restorations.