2160 p videos
One intresting fix would be that when exporting to 2160p (4K) resolution,
the resolution of the video would be 3840x 2160 like it supposed to be!
And not 2720x1530.
I tried 3 times and always same result, wasted all my "export times" on 1 video and final result was still worse that original but it took x2 more space!