Kdenlive : unable to export to mp4

Hello,
I updated my computer 2 days ago and on Kdenlive, i can’t export to mp4.
When I export, if i select MP4, the software says me : Unsupported video codec: libx264

Installed :
media-libs/x264 0.0.20190214
media-plugins/gst-plugins-x264 1.16.2
kde-apps/kdenlive 20.04.3

Maybe a problem with ffmpeg ?

https://bbs.archlinux.org/viewtopic.php?id=257486

Reemerging mlt (from source not from binary) solves the problem

@Lautre : Please, rebuild MLT :slight_smile:

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