OpenShot
Split Clips/File is setting the wrong start and end frames
Describe the bug:
I posted on the Reddit sub here.
I am trying to split an mp4 into multiple small clips. The first clip is saved with the correct frames, but every clip after that the frames are significantly off (by like at least a thousand). I have to close OpenShot and re-open it to get it to work again. But having to do that for every single clip is really not a functional workflow. I tried uninstalling and reinstalling the app. I currently have OpenShot-v3.2.1-release-12654-044bb224-23713d3a (Official) (would be great to have a Copy version info button on the About page).
The osp file, assets, and mp4 file are all on local disk.
Steps to reproduce the behavior:
I closed OpenShot, downloaded and installed the latest daily, opened OpenShot by double-clicking on the osp file.
Right-click on the video file and selected Split File (I like the change from Clips to File here). I don't necessarily have every file split with sequential frames as the end and start between clips. I will skip over transition effects in the original, things like that. I always supply a numbered file name before clicking create, so I can both find the one I want and be assured they are being listed chronologically in the Project Files panel. Trying to split
| Clip name | Frames |
|---|---|
| 01 elevator | 713-925 |
| 02 in car | 926-1036 |
| 03 driving | 1164-1277 |
I took screenshots of the Split File window every step, showing the selected frame as I clicked the Start and End for each file. Then I took a screenshot showing the Project Files thumbnails, and already we can see they don't match either the Start or End frames that I had selected. Further going into the File Properties for each file the saved frames are as follows:
| Clip name | Frames |
|---|---|
| 01 elevator | 713-926 |
| 02 in car | 1638-1749 |
| 03 driving | 2801-2915 |
System Details:
- OpenShot Version 3.2.1 (both the release, and the latest daily)
- Surface Pro 9 12th Gen Core i7-1255U, 16G memory, Intel Iris Xe iGPU, Windows 11
- Intel Core i7-3615QM (w\ iGPU), 16G memory, Windows 10
Screenshots:
https://imgur.com/a/kxFzqV2
I uninstalled 3.2 and went to 3.1.1, and the Split Clips function is working correctly with that version.
Hello @jgeorgeson I have submitted this bug in the queue for the lead developer to review and work on a fix: https://trello.com/c/h6rsaUar/21-split-file-causes-loss-of-frames.
Hello @jgeorgeson
If you have time and willing to retest, please download the latest v3.4.0-Release-Candidate and give it a try.
Go to openshot.org/download/#daily. As of this writing the version is: Version: 3.4.0 | 0.5.0 OpenShot-v3.4.0-release-candidate-14567-dd62f5b4-0b018e34 Release Date: 2025-09-06
Hint: In v3.4.0, when you go to Help | About OpenShot, you can right click anywhere on that screen and copy the version information to the clip board.
In my testing, this seems to be working with one exception. It looks like the End frame is always getting bumped up by one frame. So your final number should look like this:
01 Elevator = 713-926 02 in car = 926-1038 03 driving = 1164-1278
My expectation would be:
01 Elevator = 713-925 02 in car = 926-1037 03 driving = 1164-1277
I will report this back to the lead developer once I get confirmation from you.
Thank you in advance!
Not sure what the release schedule is, might be a few weeks before I can get to testing it.
Looking much better with this build:
Version: 3.4.0 | 0.5.0 OpenShot-v3.4.0-release-candidate-14675-01a4d9f6-0b018e34 Release Date: 2025-09-17
I do see what you mean about the last frame but I'm not finding it to be a problem. I tend to try and split a little before and after and so I can trim the clips more precisely when I'm placing them on the timeline.
Awesome and thank you @jgeorgeson. Please feel free to reopen this ticket if you find any other issue related to this post.