ChainsawAsh pointed out to me an issue with ESB’s Custom SE recently. I neglected to crop out the black bars of the 1080p frame when applying the color correction, leading to several places in the film during which the empty borders of the frame become brighter or bluish.
I’ve already fixed the problem and am encoding new video streams for the 1080p and DVD versions. (The two 720p versions are immune because the frame was cropped.) I’ll get these out there once I’m finished with LOE in a few days and then move onto getting ANH’s Custom SE out there for those wanting to include it in a pre-IX viewing.