I'm afraid this is a tough case to analyse. I'm not sure if there really
is an issue or if it just is so complex it just runs into the arbitrary
iteration limit of the solver.

It seems opencv stuff is quite complex, I don't know though if you can
safely remove all opencv stuff from the system. Temporarily uninstalling
krita and darktable might help, as could wine.

It stands to reason we could implement the correct mapping in our quirk
to directly upgrade those:

libopencv-(.*)4.5d => libopencv-\g{1}406t64


But I am not 100% sure, it seems it tries to remove plasma-desktop and 
ubuntustudio-desktop earlier.

Broken plasma-desktop:amd64 Depends on qml-module-org-kde-pipewire:amd64
< none | 5.27.11-0ubuntu2 @un uH >

There is another chain of issues there with pulseaudio:

Broken pipewire-alsa:amd64 Conflicts on pulseaudio:amd64 < 
1:15.99.1+dfsg1-1ubuntu2.2 -> 1:16.1+dfsg1-2ubuntu10 @ii umU >
  Considering pulseaudio:amd64 11 as a solution to pipewire-alsa:amd64 1
  MarkKeep pipewire-alsa:amd64 < none -> 1.0.5-1ubuntu1 @un uN Ib > FU=0
  Holding Back pipewire-alsa:amd64 rather than change pulseaudio:amd64


Broken ubuntustudio-pipewire-config:amd64 Breaks on pulseaudio:amd64 < 
1:15.99.1+dfsg1-1ubuntu2.2 -> 1:16.1+dfsg1-2ubuntu10 @ii umU >
  Considering pulseaudio:amd64 11 as a solution to 
ubuntustudio-pipewire-config:amd64 2
  MarkKeep ubuntustudio-pipewire-config:amd64 < none -> 24.04.26 @un uN Ib > 
FU=0
  Holding Back ubuntustudio-pipewire-config:amd64 rather than change 
pulseaudio:amd64


  Installing pulseaudio:amd64 as Recommends of vokoscreen-ng:amd64
     Upgrading: pulseaudio-module-jack:amd64 < 1:15.99.1+dfsg1-1ubuntu2.2 | 
1:16.1+dfsg1-2ubuntu10 @ii umR > due to pulseaudio-module-jack:amd64 Depends on 
pulseaudio:amd64 < 1:15.99.1+dfsg1-1ubuntu2.2 | 1:16.1+dfsg1-2ubuntu10 @ii umR 
> (= 1:15.99.1+dfsg1-1ubuntu2.2)
    MarkInstall pulseaudio:amd64 < 1:15.99.1+dfsg1-1ubuntu2.2 -> 
1:16.1+dfsg1-2ubuntu10 @ii umU > FU=0
      MarkInstall pulseaudio-module-jack:amd64 < 1:15.99.1+dfsg1-1ubuntu2.2 -> 
1:16.1+dfsg1-2ubuntu10 @ii umU > FU=0


I believe there is something wrong somewhere with those pulseaudio dependencies 
and either way you'd end up failing even if we fix opencv.


It seems ubuntustudio-desktop is missing some pipewire depends to force it 
being installed or something.

** Also affects: ubuntustudio-meta (Ubuntu)
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/2078639

Title:
  The update crashes at the same place.  I have looked but cannot find
  any non-Ubuntu apps that may cause a problem

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