The encoding I tested was HEVC -> ProRes 422HQ In the program I had to select ProRes 4k in order to be able to apply the LUT, I tested it both with 1080p100 and 2160p25 and it applied the LUT fine, some of my older 1080p25 overcranked footage before the increasing bitrate firmware came I see extreme banding in the sky but that might also just be me tweaking the settings to give me a flat profile with this ¤/!%#@( 8bit codec. The 1080p100 footage wont convert in ProRes 4k mode, I assumed its because ProRes does not support 100 fps or the program is simply incapable of it, though it will slow the footage down for you. DNxHD does not have the LUT option available its greyed out for some reasons, MXF is useless it gets wrapper problems, the MPEG Intra are 8bit only also useless, the TIFF 48bit mode worked fine for me as well with the LUT so did H264 export. As for 25fps render for a 25p project file which was for ProRes, my computer is quite beefy so it tends to spit out 10 minute HEVC files in RockyMountains Converter in 2 minutes to ProRes