GrayJay FlatHub worked on Kubuntu 25.04 frozen screen on Kubuntu 26.04

[JoshiFresa]

Hi. As I made a move to the beta version 26.04 of Kubuntu, I wanted to share that the GrayJay app that used to work perfectly on Kubuntu 25.04 now opens with a frozen screen and nothing happens, no error message, so it can be useful to consider to improve the system. Unfortunately as a beginner I'm not sure what info I should provide to help tackle this issue, just tell me what I have to share here, thanks in advance.

[jlittle]

(I don't know what GrayJay is or does.)

I suggest trying to run it in a konsole, if you are not already. If you are running it from the menu, right-click the menu, choose Edit Applications, and find the command and arguments for it. The command is likely /usr/bin/flatpak but the arguments will be something longer. These are, for my Signal flatpak,

run --branch=stable --arch=x86_64 --command=signal-desktop --file-forwarding org.signal.Signal @@u %U @@

Put the command and the arguments into a konsole, to see error messages about what is going wrong.

[claydoh]

You may need to see if GrayJay knows about this, but since 26.04 is not released yet, they may not be aware of any issues.,
Was it working in 25.10?

You also may want to try starting it from the command line so you can see what the errors are. You may just be missing a package or something like that.

[JoshiFresa]

Thanks for the replies

[JoshiFresa]

(I don't know what GrayJay is or does.)

I suggest trying to run it in a konsole, if you are not already. If you are running it from the menu, right-click the menu, choose Edit Applications, and find the command and arguments for it. The command is likely /usr/bin/flatpak but the arguments will be something longer. These are, for my Signal flatpak,

Thanks jlittle! Here is the result:
[2026-04-14 03:20:07.556] [INFO] [ManagedThreadPool] New threadpool created (16[2026-04-14 03:20:07.603] [INFO] [ManagedThreadPool] New threadpool created (4)
[2026-04-14 03:20:07.603] [INFO] [Program] AppContext.BaseDirectory: /app/grayjay/
[2026-04-14 03:20:07.605] [INFO] [Program] Base Directory: /home/difresa/.var/app/app.grayjay.Grayjay/data/Grayjay
[2026-04-14 03:20:07.606] [INFO] [Program] Temporary Directory: /home/difresa/.var/app/app.grayjay.Grayjay/data/Grayjay/temp_files
[2026-04-14 03:20:07.609] [INFO] [Program] Log Level: Warning
[2026-04-14 03:20:07.610] [INFO] [Program] Log file path: /home/difresa/.var/app/app.grayjay.Grayjay/data/Grayjay/log.txt
Log flusher exited with exception: System.Threading.Tasks.TaskCanceledException: A task was canceled.
at Grayjay.Desktop.POC.Log.<.ctor>b__7_0()
[2026-04-14 03:20:08.012] [WARNING] [StatePlatform] StatePlatform Initialize
[2026-04-14 03:20:08.151] [WARNING] [StateDownloads] Found 0 redundant downloaded files, deleting

GrayJay is a media channels viewer

The Log.txt file goes like this:

[2026-04-14 03:20:08.012] [WARNING] [StatePlatform] StatePlatform Initialize
[2026-04-14 03:20:08.151] [WARNING] [StateDownloads] Found 0 redundant downloaded files, deleting

[JoshiFresa]

You may need to see if GrayJay knows about this, but since 26.04 is not released yet, they may not be aware of any issues.,
Was it working in 25.10?

You also may want to try starting it from the command line so you can see what the errors are. You may just be missing a package or something like that.

Dear Claydoh, GrayJay seem to be aware of this issue as they were working on a fix as I searched about it, although I did not understand everything I read, and the flatpak package actually worked beautifully in Kubuntu 25.04 but the issue started with my upgrade to Kubuntu 26.04, which is interesting for the community and the testing of this beta kernel. That's why I posted. It was preinstalled until I upgraded. I also uninstalled it actually and reinstalled it to check whether it would help but with the same result. I pasted above the log file and info about the error. A gray screen for the grayjay Thanks a lot for your help

[claydoh]

GrayJay seem to be aware of this issue as they were working on a fix as I searched about it, although I did not understand everything I read

Link?

Have you tried their actual download, not the Flatpak?

If the Flatpak has a problem, then it isn't an issue with Kubuntu, or any distro, most likely.