Blender is only adding about half of a video? The weirdest thing seems to be happening, I am trying to add 3 videos to blender VSE, for this sake we'll call them 1.mp4 2.mp4 and 3.mp4.

Each of these videos is exactly 14 seconds long and within 150 kB of each other in size. They are all the same frame rate.

No matter what I do 1.mp4 is only about half of the video when I add it to the video-sequence editor, the rest work fine.



I've tried messing with the start and end frames and the frame rate but changing these doesn't appear to affect anything with 1.mp4's length.

I have also simply tried extending 1.mp4's length in blender but obviously there's no video on the second half.

I have played all 3 videos in VLC and they play just fine so I know it's not a corrupted file.
Either there is something different in 1.mp4 or there something wrong in the Blender import of them. 

Try to compare the metadata of the clips in MediaInfo if they are similar, if they're not, then that might be the reason.

If they are similar, try to make four copies of one of the good clips, and import them in Blender, if the problem is visible, then do a bug report: Menus > Help > Report a bug.