Tilix flatpak does not launch

Thrilled to finally be a part of this forum, and especially this section. I’ve been pleasingly using Fedora Workstation over the last 4 years, and decided to give a try to Silverblue. It’s a nice experience, and I might post about a couple of issues I encounter. Here is the first one.

I have installed Tilix flatpak. The installation sounds to be fine (see below). However, launching Tilix simply does nothing. I’m running Fedora Silverblue 30 on my Thinkpad X1 Yoga Gen 4

    $ flatpak install tilix
    Looking for matches…
    Found similar ref(s) for ‘tilix’ in remote ‘fedora’ (system).
    Use this remote? [Y/n]: Y
    Found ref ‘app/com.gexperts.Tilix/x86_64/stable’ in remote ‘fedora’ (system).
    Use this ref? [Y/n]: Y

    com.gexperts.Tilix permissions:
        ipc                  wayland              x11                    devices
        file access [1]      dbus access [2]      bus ownership [3]

        [1] xdg-run/dconf, ~/.config/dconf:ro
        [2] ca.desrt.dconf, org.freedesktop.Flatpak, org.freedesktop.secrets
        [3] com.gexperts.Tilix


            ID                    Arch      Branch    Remote   Download
     1. [✓] com.gexperts.Tilix    x86_64    stable    fedora   21.2 MB / 21.2 MB

    Installation complete.

What do you get if you run
flatpak run com.gexperts.Tilix

I had a similar issue with it not launching if I told it to run a login shell, but that’s off by default I think.

I then got this error message:

$ flatpak run com.gexperts.Tilix
2019-08-05T15:53:32.070 [warning] terminal.d:2969:hostCommandExitedCallback **********COLLECT**********

(tilix:2): GLib-CRITICAL **: 15:53:32.071: g_atomic_ref_count_dec: assertion 'g_atomic_int_get (arc) > 0' failed

(tilix:2): GLib-CRITICAL **: 15:53:32.071: g_atomic_ref_count_dec: assertion 'g_atomic_int_get (arc) > 0' failed

(tilix:2): GLib-CRITICAL **: 15:53:32.071: g_atomic_ref_count_dec: assertion 'g_atomic_int_get (arc) > 0' failed

(tilix:2): GLib-CRITICAL **: 15:53:32.071: g_atomic_ref_count_dec: assertion 'g_atomic_int_get (arc) > 0' failed
2019-08-05T15:53:32.109 [warning] terminal.d:2969:hostCommandExitedCallback **********COLLECT**********

(tilix:2): GLib-CRITICAL **: 15:53:32.109: g_atomic_ref_count_dec: assertion 'g_atomic_int_get (arc) > 0' failed

(tilix:2): GLib-CRITICAL **: 15:53:32.109: g_atomic_ref_count_dec: assertion 'g_atomic_int_get (arc) > 0' failed

(tilix:2): GLib-CRITICAL **: 15:53:32.109: g_atomic_ref_count_dec: assertion 'g_atomic_int_get (arc) > 0' failed

(tilix:2): GLib-CRITICAL **: 15:53:32.109: g_atomic_ref_count_dec: assertion 'g_atomic_int_get (arc) > 0' failed

I’m seeing the same thing. Won’t launch from gnome shell but will when launched from a terminal (which is kind of ironic, to open a terminal to launch a terminal!). Also getting the same output @grimy55 posted.