First big project on KdenLive crashing on opening project after hours of editing

Help
1

Video of crash

This is my first time using KdenLive for a big project, it’s got about 10 gigs of video and its roughly an hour long. I’ve been working on it for nearly 8 hours and I have saved and closed it a couple times during my workflow. Most recently though when I try to open the file the program says that it is missing something, the title card? No matter what options I press in the next menu it crashes with nothing in the terminal other than

[1] 2432452 segmentation fault (core dumped) kdenlive

which I am not sure what is. I don’t have any backups that I made myself, is there any way to recover the video or even parts of it? If there is any other information I can provide for debugging I will happily, any help is appreciated thank you all very much.

Laptop info:

Fedora Linux 6.12.5-100.fc40.x86_64

Xfwm4 (X11)

Nitro AN515-42 (V1.18)

AMD Ryzen 5 2500U with Radeon Vega Mobile Gfx (8) @ 2.00 GHz

AMD Radeon RX GraphicsAMD Radeon Vega 8 Graphics

2

Are you using the appimage? If not, try it first. There’s been some reports of fedora giving people grief lately, but nothing particular confirmed.

If all else fails, you could look in .local/share/kdenlive/.backup/ and try to see what changed since the last ‘working’ version.

The front end interface for restoring from them is described here:

3

Well the appimage does the same thing and all of the back ups have the same crash, which is strange beacuse the title card which seems to be crashing it was added after several hours of work so it shouldn’t even be looking for it in the oldest backups.

4

Then I’m going to bet you’ve deleted or moved some resource that your project file refers to, and has done since the earliest revisions you have backups for.

It still shouldn’t crash - but until you figure out what resource it’s hard to file an actionable bug report about that…

5

I’ve been messing with it more, it seems to be an issue with the Title clip, I know this beacuse if I create a new project with just a Title clip in the same font as before then save and close when I reopen the file it brings up the same errors screen about not being able to find it. However, in the new project when I just click continue it loads perfectly fine and the title is there in the project, when repeating the steps on my main video it crashes while loading resorces.

I know I didn’t delete any resources from the project manually beacuse I haven’t used my computer for anything else in between edititing and when I checked my trash can it had nothing recent.

Anyways, would you happen to know where the title card file is actually stored on the system? Maybe I can try manually removing it from the files in the main project and see if that does anything? Not really sure at this point.

6

The .kdenlive project file is a simple text file that can be edited with the text editor of your choice. Just be super careful with that as it can (further) mess up your project. I’m sure you know and work only on a copy of it.
Look for /kdenlivetitle and you will find the producer for the title clip. Perhaps you can just delete that producer<number> throughout the file and be done with it.

Use at your own risk! And good luck!

7

If all the old backups which “previously didn’t crash”, are now crashing - that points pretty compellingly to something outside of the project file, which has been part of the project since the very first backup, being what must have changed …

If it was just one project file crashing we could do some handwaving about “corruption” or the like - but nothing should have retroactively corrupted all your backup files.

The “missing” font might be a candidate for that - is it a normal system font, or one you installed ‘manually’? If it’s being reported as missing, and newly so, then something has changed there …