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A bit of weird UI decisions I discovered in -- even though it warns you that rendering is done with low quality proxy, this is the only way to render 4K UHD video without export audio going out of sync.

I'm pretty sure this is a bug in , where the final render of 4K UHD video will cause audio to go out of sync. A workaround is to export video and audio separately, with using proxy clips checked for audio, and then stitch them together with the following command --

ffmpeg -i video.mp4 -i audio.wav -vcodec copy -acodec libmp3lame output.mp4

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