Not sure if anyone can recommend a solution or even explanation.
I have been using this footage as an example of Super 8 2K reversal scanning on the LaserGraphics ScanStation:
The problem, you'll see it in the very first seconds, is the odd horizontal (almost interlacing looking) lines, especially on the outer edges of his red sweatshirt.
I have even tried youtube with a 2K Prores 4444 10GB file. It's much more subtle on youtube, but it's STILL there.
Where is this coming from and can I get rid of it? It's not there at all in the original. The original is beautifully sharp... almost a perfect Super 8 reversal scan except maybe some dynamic range issues and over-exageration of the red. The grain is beautifully resolved and the original Prores 4444 2K looks amazing here on my desktop.