Ubuntu software app not working (exactly like July 2025 post 64985)

Ubuntu Version: 24.04.3 LTS

Desktop Environment (if applicable):
GNOME (afaik); windowing system X11

Problem Description:
Ubuntu Software app shows nothing available under categories or suggested apps;

Relevant System Information:

System is Clevo PD70; nothing too magical

Screenshots or Error Messages:

Ubuntu Software main window:

Clicking on a category (any category) – none of the … sub-windows are active:

Clicking on an app’s icon: (e.g. “kolourpaint”)

What I’ve Tried:

$ snap run snap-store
23:14:48:0677 Gtk Failed to load module “xapp-gtk3-module”
23:14:48:0678 Gtk Not loading module “atk-bridge”: The functionality is provided by GTK natively. Please try to not load it.
$ sudo snap refresh snap-store --stable
[sudo] password for donald:
snap “snap-store” has no updates available

Running snap-store by itself:

$ snap-store
00:22:09:0207 Gtk Failed to load module “xapp-gtk3-module”
00:22:09:0208 Gtk Not loading module “atk-bridge”: The functionality is provided by GTK natively. Please try to not load it.
00:22:11:0244 Gs plugin appstream took 1.7 seconds to do setup
00:22:12:0036 PK unhandled property ‘Sender’
00:22:12:0142 Fwupd fwupd_client_download_bytes_async: assertion ‘url != NULL’ failed
00:22:12:0143 Fwupd fwupd_client_download_bytes_async: assertion ‘url != NULL’ failed
00:22:18:0958 Gs adding wildcard app ///org.gnome.Builder.desktop/ to plugin cache
00:22:18:0958 Gs adding wildcard app ///org.gnome.Calculator.desktop/ to plugin cache
00:22:18:0958 Gs adding wildcard app ///org.gnome.clocks.desktop/ to plugin cache
00:22:18:0958 Gs adding wildcard app ///org.gnome.Dictionary.desktop/ to plugin cache
00:22:18:0958 Gs adding wildcard app ///org.gnome.Documents.desktop/ to plugin cache
00:22:18:0958 Gs adding wildcard app ///org.gnome.Evince/ to plugin cache
00:22:18:0958 Gs adding wildcard app ///org.gnome.gedit.desktop/ to plugin cache
00:22:18:0958 Gs adding wildcard app ///org.gnome.Maps.desktop/ to plugin cache
00:22:18:0958 Gs adding wildcard app ///org.gnome.Weather/ to plugin cache
00:22:18:0959 Gs Only 0 apps for recent list, hiding
00:22:20:0381 PK unhandled property ‘Sender’
00:22:22:0080 PK unhandled property ‘Sender’
00:22:22:0464 PK unhandled property ‘Sender’
00:22:28:0743 Gs no desktop_groups for all
00:22:37:0141 atk-bridge: get_device_events_reply: unknown signature
00:23:12:0271 Fwupd fwupd_client_download_bytes_async: assertion ‘url != NULL’ failed

Before Posting:
c.f. https://discourse.ubuntu.com/t/ubuntu-software-app-not-working/64985

was the most (only) relevant post, but “Ubuntu Software” (Exec=/snap/bin/snap-store.ubuntu-software %U) is still silently doing NOTHING.

Do not worry about it. I do not.

I see the same effect as you do. I click on a category and I get a page of blank placeholder icons. I click on a placeholder icon and Ubuntu Software downloads the catalogue for that category from the archives. But no other category.

I do not know if this is design or neglect. If it is design, then I approve of it. In the past Ubuntu Software would, from time to time, update the entire software catalogue. Do we need the entire catalogue or just the categories we wish to browse?

It is not so long ago that we had two software stores. 1) Gnome Software (branded as Ubuntu Software) which gave us Debian packaged applications and the Snap Store for Snap packaged applications.

I see this in the Ubuntu Desktop Guide:

Applications are available in two formats: snap packages and Debian packages. An application available as a snap package is from now on referred to as a snap. Some applications are available in both formats. In such a case in App Center the snap will be listed first.

In my opinion Ubuntu Software/App Center is going through a transitional period. I am going along for the ride.

Regards

More searching on the web, I found a conversation at https://discourse.ubuntu.com/t/ubuntu-snap-store-changed-after-update-restart/58168 wherein the solution proposed basically worked for me:

~$ snap info snap-store
name: snap-store – … clearly 1216 is the installed and running version
~$ sudo snap-store --quit
….[misc error messages elided]
~$ sudo killall snap-store
snap-store: no process found
~$ sudo snap remove snap-store
snap-store removed (snap data snapshot saved)
~$ sudo snap install snap-store
snap-store (2/stable) 0+git.90575829 from Canonical✓ installed
~$ snap info snap-store – now at version 1270, and it identified itself as App Center

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