Doesn't start on Ubuntu 26.04

[tredondo]

Description
After installing from flathub per the instructions at https://flathub.org/en/apps/com.github.PintaProject.Pinta, launching Pinta via the desktop shortcut does nothing, and flatpak -v run com.github.PintaProject.Pinta hangs at F: Running 'bwrap --args 74 -- pinta'.

To Reproduce

flatpak install flathub com.github.PintaProject.Pinta
flatpak -v run com.github.PintaProject.Pinta

Additional Info

$ flatpak install flathub com.github.PintaProject.Pinta
Looking for matches…
Remote ‘flathub’ found in multiple installations:

   1) system
   2) user

Which do you want to use (0 to abort)? [0-2]: 2
Required runtime for com.github.PintaProject.Pinta/x86_64/stable (runtime/org.gnome.Platform/x86_64/50) found in remote flathub
Do you want to install it? [Y/n]: Y

com.github.PintaProject.Pinta permissions:
    ipc     network     fallback-x11    wayland    x11    dri    file access [1]    dbus access [2]

    [1] /run/media, xdg-desktop, xdg-documents, xdg-download, xdg-pictures, xdg-public-share, xdg-run/gvfs, xdg-run/gvfsd, xdg-templates
    [2] org.gtk.vfs.*


        ID                                                Branch                 Op            Remote             Download
 1. [✓] com.github.PintaProject.Pinta.Locale              stable                 i             flathub              6.5 kB / 715.2 kB
 2. [✓] org.freedesktop.Platform.GL.default               25.08                  i             flathub            141.4 MB / 142.4 MB
 3. [✓] org.freedesktop.Platform.GL.default               25.08-extra            i             flathub             25.6 MB / 142.4 MB
 4. [✓] org.freedesktop.Platform.VAAPI.Intel              25.08                  i             flathub             13.6 MB / 13.7 MB
 5. [✓] org.freedesktop.Platform.codecs-extra             25.08-extra            i             flathub             14.2 MB / 14.4 MB
 6. [✓] org.gnome.Platform.Locale                         50                     i             flathub             18.7 kB / 386.0 MB
 7. [✓] org.gnome.Platform                                50                     i             flathub            330.5 MB / 408.9 MB
 8. [✓] com.github.PintaProject.Pinta                     stable                 i             flathub             49.9 MB / 57.5 MB

Installation complete.
ted@kub26:~$ flatpak run com.github.PintaProject.Pinta








^C

$ flatpak -v run com.github.PintaProject.Pinta
F: No installations directory in /etc/flatpak/installations.d. Skipping
F: Opening system flatpak installation at path /var/lib/flatpak
F: Opening user flatpak installation at path /home/ted/.local/share/flatpak
F: Opening user flatpak installation at path /home/ted/.local/share/flatpak
F: Opening user flatpak installation at path /home/ted/.local/share/flatpak
F: /lib32 does not exist in runtime
F: Cleaning up unused container id 2046847846
F: Allocated instance id 557214410
F: Add defaults in dir /com/github/PintaProject/Pinta/
F: Add locks in dir /com/github/PintaProject/Pinta/
F: Allowing dri access
F: Allowing wayland access
F: Running 'bwrap --args 77 -- xdg-dbus-proxy --args=73'
F: Running 'bwrap --args 74 -- pinta'

Version
Kubuntu 26.04 Wayland, Pinta 3.1.2.

[cameronwhite]

Hmm, I tried installing via flatpak on a fresh VM of Ubuntu 26.04 and it launched fine. This was with the ARM version, and the default GNOME environment, though