[Bug 2043261] [NEW] kdenlive fails to show effects or compositions unless qml-module-org-kde-kcm is installed

[Space Hobo]

Public bug reported:

kdenlive normally shows lists of effects plugins or composition tools in
a pane/tab at various places in the UI.  After installing kdenlive
directly from apt, these panes show blank space (white in my case,
despite the dark theme).  This appears to be a UI rendering problem,
which I suspect for the following reasons:

1. The effects are available from the menu: Timeline→Add Effect→[choose effect category]→[choose effect]
2. After I installed qml-module-org-kde-kcm via apt, the problem went away and the interface now shows the effects tree as shown in the documentation for kdenlive.

This appears to be a missing dependency only, and for a rather prominent
video editor in Ubuntu.

ProblemType: Bug
DistroRelease: Ubuntu 23.10
Package: kdenlive 4:23.08.1-0ubuntu1
ProcVersionSignature: Ubuntu 6.5.0-10.10-generic 6.5.3
Uname: Linux 6.5.0-10-generic x86_64
ApportVersion: 2.27.0-0ubuntu5
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Sat Nov 11 11:05:52 2023
InstallationDate: Installed on 2022-12-13 (333 days ago)
InstallationMedia: Ubuntu 22.10 "Kinetic Kudu" - Release amd64 (20221020)
SourcePackage: kdenlive
UpgradeStatus: Upgraded to mantic on 2023-10-28 (14 days ago)

** Affects: kdenlive (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug mantic wayland-session

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https://bugs.launchpad.net/bugs/2043261

Title:
  kdenlive fails to show effects or compositions unless qml-module-org-
  kde-kcm is installed

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