GTK Pixbuf Loader Missing - QA R2025a

[MNikoliCC]

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Describe the Bug When trying to open a new world, Webots closes with the error:

(webots-bin:123464): Gtk-WARNING **: 10:34:39.863: Could not load a pixbuf from /org/gtk/libgtk/icons/16x16/status/image-missing.png.
This may indicate that pixbuf loaders or the mime database could not be found.
**
Gtk:ERROR:../../../../gtk/gtkiconhelper.c:494:ensure_surface_for_gicon: assertion failed (error == NULL): Failed to load /org/gtk/libgtk/icons/16x16/status/image-missing.png: Unrecognized image file format (gdk-pixbuf-error-quark, 3)
Bail out! Gtk:ERROR:../../../../gtk/gtkiconhelper.c:494:ensure_surface_for_gicon: assertion failed (error == NULL): Failed to load /org/gtk/libgtk/icons/16x16/status/image-missing.png: Unrecognized image file format (gdk-pixbuf-error-quark, 3)
/snap/webots/x1/usr/share/webots/webots: line 102: 123464 Aborted                 (core dumped) "$webots_home/bin/webots-bin" "$@"

The same error occurs I try to "Save", "Save world as" , "File->Make Movie" or File->Share->Save as local files->Export scene/Record and export animation.

Steps to Reproduce

1. Start Webots R2025a
2. Click on File->Open World

Expected behavior The descrbed operations are running without errors.

System

• Operating System: Ubuntu 22.04
• Graphics Card: RENOIR (renoir, LLVM 15.0.7, DRM 3.57, 6.8.0-49-generic)

Additional context I am using Webots R2025a installed via snap package.