Andrew, I applied these on my ffmpeg 6.0 version but have no results yet -- have not tried anything different but the default works just like before.  More later.

On Mon, May 29, 2023 at 7:26 PM Andrew Randrianasulu <randrianasulu@gmail.com> wrote:
I tried to add few more flags to filempeg encoder settings, not touching -I (as in Interlace, not small "l" as in level) for now

I also tried to get interlace info from both session interlace mode and deinterlace checkbox ...