RawTherapee GLib warning

I am on Ubuntu 22.04.5 LTS. While trying to run RawTherapee 5.11, I get the following warning in the background:

Gtk-Message: 17:13:37.357: Not loading module "atk-bridge": The functionality is provided by GTK natively. Please try to not load it.

(rawtherapee:8454): GLib-GIO-WARNING **: 17:13:37.796: Error creating IO channel for /proc/self/mountinfo: Permission denied (g-file-error-quark, 2)

Is this anything serious? Within RawTherapee, the only issue that I spotted was that the camera and lens autocorrection profiles do not load.

Might be a missing interface connection, if you check your journal do you see any DENIED messages for rawtherapee ? (also check snap connections ... for the snap)

There is nothing DENIED. But should there be something related to /proc/self/mountinfo?

content[gnome-46-2404]    rawtherapee:gnome-46-2404                                      gnome-46-2404:gnome-46-2404       -
content[gpu-2404]         rawtherapee:gpu-2404                                           mesa-2404:gpu-2404                -
content[gtk-3-themes]     rawtherapee:gtk-3-themes                                       gtk-common-themes:gtk-3-themes    -
content[icon-themes]      rawtherapee:icon-themes                                        gtk-common-themes:icon-themes     -
content[sound-themes]     rawtherapee:sound-themes                                       gtk-common-themes:sound-themes    -
desktop                   rawtherapee:desktop                                            :desktop                          -
desktop-legacy            rawtherapee:desktop-legacy                                     :desktop-legacy                   -
gsettings                 rawtherapee:gsettings                                          :gsettings                        -
home                      rawtherapee:home                                               :home                             -
opengl                    rawtherapee:opengl                                             :opengl                           -
removable-media           rawtherapee:removable-media                                    :removable-media                  manual
unity7                    rawtherapee:unity7                                             :unity7                           -
wayland                   rawtherapee:wayland                                            :wayland                          -
x11                       rawtherapee:x11                                                :x11                              -