https://bugs.kde.org/show_bug.cgi?id=521344

            Bug ID: 521344
           Summary: Kdenlive snap (rev 139) breaks after ffmpeg-2404
                    background update: libavformat.so.61 missing
    Classification: Applications
           Product: kdenlive
      Version First 26.04.0
       Reported In:
          Platform: Ubuntu
                OS: Linux
            Status: REPORTED
          Severity: major
          Priority: NOR
         Component: Setup & Installation
          Assignee: [email protected]
          Reporter: [email protected]
  Target Milestone: ---

After a recent background update to the ffmpeg-2404 snap runtime, the stable
version of Kdenlive (revision 139) fails to launch, producing a shared library
error. It appears Kdenlive is looking for older media libraries, but the
runtime update replaced them, breaking backward compatibility.

Steps to reproduce:

    Have Kdenlive snap (rev 139, latest/stable) installed.

    Allow ffmpeg-2404 snap to refresh/update to the latest version.

    Launch Kdenlive via terminal.

Actual result:
The application crashes immediately on startup with the following error:
error while loading shared libraries: libavformat.so.61: cannot open shared
object file: No such file or directory

Note: Before the crash, the following namespace mount warnings were also
observed during the snap refresh cycle:
update.go:85: cannot change mount namespace according to change mount
(/snap/gtk-common-themes/1535/share/gtk2/Materia-compact
/snap/kdenlive/139/data-dir/themes/Materia-compact none bind,ro 0 0): cannot
write to "/snap/gtk-common-themes/1535/share/gtk2/Materia-compact" because it
would affect the host in "/snap"

Temporary Workaround:
Running sudo snap revert ffmpeg-2404 and holding the package fixes the launch
issue, confirming the dependency mismatch between Kdenlive rev 139 and the new
ffmpeg-2404 update.

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