Matthias, I am experiencing this issue on Debian Testing and that was before appstream 1.0 migrated to Testing today.
I am also experiencing this issue with Ubuntu 24.04 but not with the stable Ubuntu 23.10, even if I am using the same version of gnome-software. https://launchpad.net/bugs/2047818 Did something change with appstream-generator or something else at a lower level? Thank you, Jeremy Bícha
