Hello svt-av1 team, I have discovered the following problem for which there is unfortunately no solution yet. The problem is that under certain circumstances (and I don't know what those circumstances are), --adaptive-film-grain always causes film grain flickering. It doesn't matter which parameters you use, or whether the source has different codecs (vc1, avc, hevc, vp9, etc.) or bit depths (8 or 10 bit), the result is always the same. As long as --adaptive-film-grain is enabled, the film grain flickers. As I said, not always. But under certain circumstances, you have frames with grain, and then again without, and this always alternates. I've noticed this in many videos. And it doesn't matter whether the scene is very dark or very bright (although it's particularly noticeable in dark scenes). So it would be great if you could fix the --adaptive-film-grain problem somehow, since you can't turn it off in the current version either. I also know that it's --adaptive-film-grain, because I tested it against other forks where I could turn it off. Unfortunately, the psy team and other experienced people in the AV1 field also had no solution. So I hope you can solve this somehow. I like to use --adaptive-film-grain, but it messes up the entire encoding as soon as the film grain flickers, not to mention that you can't turn it off at all (at least not in your mainline version. In psy-ex and svt-av1-hdr, it works). So it would be great if you could find a solution for the film grain flickering ASAP. Thank you. Here is the source I used: [video.mkv](/uploads/652d6d26aeabbeb2b1d22f2b0cb1388a/video.mkv) And here is the encoding with the parameters: --crf 30 --preset 2 --film-grain 16