Start of image sequence is shown at end when exporting

[DaVince]

I made an animation using an image sequence. I import the image sequence into OpenShot. Then I add some audio which is a little bit shorter than the video. I do a test playback and everything is fine. So then I export to the YouTube HD format at high quality.

Now, the result is that suddenly, in the exported file, the first few frames of the image sequence are actually displaying at the end! It doesn't do this in the preview playback in OpenShot, just in the exported video. In any player (VLC, browser, ffplay...).

Here's my failed video (1.9 MB): http://davince.tengudev.com/temp/failed-video.mp4
Here's the images used (at 1 image per 3 frames): http://davince.tengudev.com/temp/failed-video-sequence.zip

Ubuntu 13.04
OpenShot 1.4.3 from Ubuntu's repository
ffmpeg version 0.8.6-6:0.8.6-1ubuntu2
melt 0.8.8

[DaVince (vincentbeers)]

I know why it happens now. When I export to 24 FPS, everything is fine. When I export to any other frame rate, the image sequence plays back more quickly in the exported video and then loops from the beginning, for some reason. Since YouTube export is only 25 FPS or higher, it triggered this bug.