Maybe the SSE didn’t need as much motion correction as 4K77? I know it takes some cropping to achieve a more stable motion. Or maybe the “normal” 35mm prints like the one SSE is sourced from were less cropped than the Technicolor prints?

EDIT: After looking at a few shots from the previews I have it at least looks like the source for 4K77 was jumping around a LOT. It’s not strange they had to crop it to keep a stable motion.

The only comparison I could make is this, the one on top is most likely the source for 4K77, even though the very few preview pics I have are very compressed:

This also shows they did an amazing job on cleaning it up and correcting the colors. I’d actually love to see an official before/after comparison of some shots. 😃