SUMMARY Ubuntu Software Sources content and access button missing in Discover STEPS TO REPRODUCE 1. In Kubuntu 24.04 LTS launch Discover 2. Click on Settings 3. There is no content for Ubuntus repositories that are contained in /etc/apt/ubuntu.sources 4. The Software Sources access button isn't present OBSERVED RESULT Content of /etc/apt/ubuntu.sources isn't displayed by Discover and Software Sources access button is missing EXPECTED RESULT Content of /etc/apt/ubuntu.sources should be displayed and the Software Sources access button should be present SOFTWARE/OS VERSIONS Windows: macOS: Linux/KDE Plasma: 5.27.11 (available in About System) KDE Plasma Version: 5.27.11 KDE Frameworks Version: 5.115.0 Qt Version: 5.15.13 ADDITIONAL INFORMATION I've confirmed this issue by renaming /etc/apt/sources.list.distUpgrade to /etc/apt/sources.list and launching Discover. Then Ubuntu Software Sources content and the Software Sources access button are presented.
Sources list parsing happens inside packagekit. Please file a bug with packagekit at https://github.com/PackageKit/PackageKit/issues
The related PackageKit issue is https://github.com/PackageKit/PackageKit/issues/763