I know this thread is old, but I came here when looking for a solution. I had this problem of OpenShot dropping frames at the end of image sequences. The sequence in question was named 000.png, 001.png and so on, with no gaps in naming. All frames were imported, but didn't show when exporting video.
The problem was that the project was set to 30 FPS and then I was exporting to 25 FPS, which was the fps value I wanted. By creating a new project, setting it to 25 FPS, importing again the image sequence, and exporting the video to 25 FPS, the complete image sequence was correctly exported. Perhaps a warning about exporting to a FPS setting different than the project could help with this. FPS: Frames Per Second -- You received this bug notification because you are a member of OpenShot Bugs, which is subscribed to OpenShot Video Editor. https://bugs.launchpad.net/bugs/943024 Title: generating video from image sequence drops frames at end Status in OpenShot Video Editor: New Bug description: generating video from image sequence drops frames at end. For example, i've used openshot to successfully create an image sequence from a video (no more than 20 seconds long). I've chopped up the sequence (and appropriately renamed and renumbered) so that the software doesn't have to deal with too many files at once; I've got a sequence of around 212 png files. If I then import that image sequence and export to video, the result leaves a good many frames missing. To manage notifications about this bug go to: https://bugs.launchpad.net/openshot/+bug/943024/+subscriptions -- Mailing list: https://launchpad.net/~openshot.bugs Post to : [email protected] Unsubscribe : https://launchpad.net/~openshot.bugs More help : https://help.launchpad.net/ListHelp

