I can't record at exact 60fps with h264 mp4 (amd app and cpu), i tried to get 60fps but this is what happens:
https://imgur.com/uu3KwrZ
Same thing happens with 30fps or 120fps, theres always a bit less of frames than it should be.
I also tried H264, 60FPS (AMD APP) preset and its the same thing.
Theres also a weird color thing that can be seen randomly in different parts of the video.
https://imgur.com/a/27yL2XL