Roto Brush Tool frame mismatch

Question

I have a clip of 25 FPS. On PPro i did replace it with after effects composition. In After Effects when I tried to use roto brush tool.

There was a warning

"Frame Rate mismatch, or footage with fields found, For best Roto Brush & Refine Edge results, set the composition to 23 fps to match the layer source"

I set the composition to 23 fps on AE.

On PPro inside interpret footage - Field Order, I set it to "No Field - Progressive Scan". As on one thread it was written it is due to interlaced footage.

Please Help.

Mylenium · Answer

Impossible to know. You have not provided any info what the footage and its specs actually are. It quite frankly simply sounds like you didn't care to check the project and sequence settings in Premiere and conversely the comp and projec settings in Ae as well as footage interpretation in both programs. Thus it turns out as an utter mess. Perhaps the safest way to avoid the issue would be to just start over with these things in mind. The only other thing could be that your footage uses variable framerates, which of course is useless for professional work. You need to conform and transcode it then first to have a constant framerate.

Mylenium

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