Since I upgraded to Fedora 30 (though the problem may have originated prior) whenever I launch GNOME software, it only shows installed applications and Snap applications, thus rendering it almost useless.
I have tried refreshing DNF, Appstream, and PackageKit. I have also tried cleaning the DNF cache and deleting GNOME Software’s cache. I even reinstalled Software. The issue persists.
Here’s the log when starting GNOME Software if it helps:
14:30:29:0137 Gs enabled plugins: desktop-categories, fwupd, os-release, packagekit, packagekit-local, packagekit-offline, packagekit-proxy, packagekit-refresh, packagekit-upgrade, packagekit-url-to-app, shell-extensions, appstream, fedora-pkgdb-collections, snap, desktop-menu-path, epiphany, flatpak, hardcoded-blacklist, hardcoded-featured, hardcoded-popular, modalias, packagekit-refine, rewrite-resource, odrs, packagekit-history, provenance, repos, systemd-updates, generic-updates, packagekit-refine-repos, provenance-license, icons, key-colors, key-colors-metadata 14:30:29:0137 Gs disabled plugins: dummy 14:30:29:0301 Gs not handling error failed for action get-updates-historical: failed to build result for 1c77a29dfc8470842d4bde4f48fcde6c63a8664b 14:30:34:0070 Gs Only 0 apps for recent list, hiding 14:30:34:0913 Gs hiding category audio-video featured applications: found only 0 to show, need at least 9