Updated Flatpak Version to 25.12.3 and My Videos Show as "Invalid"

Just updated Kdenlive to 25.12.3 about 10 minutes ago, went in to work on my project but the preview window says “INVALID” now.

All my videos are in AV1 format and if I try to add a new video to the project bin it says “cannot open file.”

When I go to config wizard, I get two warnings.

  1. Missing package: AVFilter
  2. Missing MLT Module: avformat (ffmpeg)

I never had these warnings before. Do I need to install them manually now? If someone could point me in the right direction I would appreciate it.

I am using Fedora 43 Kinoite and using Flatpak version. I do not have any layered packages if that matters. I have:

Radeon RX 7600 8Gb GPU

2x16 gb ddr4 3200 mhz ram

Ryzen 5 5600 CPU

MSI MPG B550 Gaming Plus motherboard.

Please let me know if you need any information.

1 Like

Quick update. AppImage version works perfectly fine. Only flatpak seems to be affected.

same issue rn with openning video files. Looked at the online manual and it just says “maybe you dont have ffmpeg installed”

useless advice…

And I need it for work EVERY DAY, so having stuff like this happen out of nowhere is a huge pain.

Same issue, using flatpak on Bazzite.

@frdbr it’d seem its not mint only.

… use the AppImage, which doesn’t have the problems of flatpak, is the build that development work gets tested with, and the one that gets built by CI on our servers for every change that is made.

It’s not like this forum isn’t full of precisely that advice.

yes having the same issue

switched to the other version for now

I see you haven’t changed one bit Ron. Still giving snarky responses, lowkey blaming the user and being secretly condescending. Do you get a kick out of this?

The issue is flatpak is problematic, can we please focus on that? Also no one frequents KDE forums.

1 Like

And the AppImage is not.

People are free to choose whatever they please, but they don’t get to angrily blame or abuse us for their own bad choices. Nothing secret or low key about that.

Alright guys, I have the issue too. I just found a fix on how to rollback flatpak programs. Here’s the fix:

  1. You still need to have the flatpak version from Kdenlive installed on your PC.
  2. Run this command in the terminal, it will go back to the 25.12.2 where everything was fine: sudo flatpak update --commit=d1ff56393e5f126661610b42be302d77513aadebe273e7f84c2b780eb0afd2f5 org.kde.kdenlive
  3. Now you should be good to go!
1 Like

same issue, AppImage version works fine.

Hi @Maxitendo1, and welcome to the forum and community!

Thanks for posting this. I wish I could make this sticky :wink:

I had to uninstall Kdenlive first with

flatpak remove org.kde.kdenlive

… then installed it again with

flatpak install org.kde.kdenlive

… and then ran the update command. But it worked.

"Hi everyone,

I’m reporting an issue with the latest Kdenlive Flatpak update (commit fd5edea131fb61a3f85f4654323278712e9ef694b715eb076f992b793013cb7e) released on April 2nd.

After updating, the application stopped accepting any video files, consistently returning an ‘unable to open’ error. I am running Kubuntu 24.04 on a Dell Inspiron N5050 with an Intel HD Graphics 3000 (Sandy Bridge).

I performed a rollback to the previous version (commit d1ff56393e5f126661610b42be302d77513aadebe273e7f84c2b780eb0afd2f5), and the application works perfectly again. It seems that the explicit disabling of OpenCV for frei0r introduced in the latest update is causing compatibility issues with my hardware/codec stack.

I’ve masked the update for now to keep a stable environment.

Environment:

  • OS: Kubuntu 24.04 LTS

  • Hardware: Dell Inspiron N5050, Intel Core i3-2370M, Mesa Intel HD Graphics 3000

  • Installation: Flatpak (system/user)"

Great to read that Kdenlive is your workhorse for whatever you are doing! Are you using it professionally?

If it is so important for you, you may want to participate in RC testing (26.04 RC will be released today) and help getting the kinks out of it before it is released officially.

Which is the reason why the clips show as “invalid”. Please note that the documentation is put together trying to cover many aspects. And in the case of distro packaging (e.g. snap or ppa) a missing library is a very valid reason why something doesn’t work. Of course, Flatpak and AppImage are more popular and is much wider use, but even you admitted that you used Mint’s own SW Manager to install Kdenlive.

people are also free to complain and point out issues, which I did.

I’m sorry but other than donating I can’t give my free time to kdenlive. And since kdenlive doesn’t have any donation options that don’t involve credit card…. no deal.

and mint’s SW Manager wasn’t the issue as pointed above(Kubuntu, Mint, Bazzite and Fedora all had the issue)

Thank you very much for considering a donation! Much appreciated! Apart from using a credit card, you can use a debit card, PayPal and even direct payment/deposit.

Bug filed: https://bugs.kde.org/show_bug.cgi?id=518497

Hi @jberkus, and welcome to the forum and community!

Thanks for reporting this as a bug and linking to it here.

As you can see from the many discussions here and in other forums, we are very much aware of the botched 25.12.3 Flatpak. We also have already several bug reports for it.

Please do not report this as a bug in bugs.kde.org anymore or complain about it here.

@berndmj is the RC released as a Flatpak? If so, happy to test.