Debian 10 (Gnome): generating a slideshow crashes the app

[SvenMoenig]

When I try to select a slideshow, everything works fine until the "generating" of the slideshow is about to finish. This is the message that appears in the console:

** Message: 13:08:27.256: MultipleWallpaperView.vala:231: Greeter selected ** Message: 13:08:27.257: MultipleWallpaperView.vala:237: Success!: /home/moenig/.var/app/com.github.calo001.fondo/data/backgrounds/Aaron Burden_7dhh8jM9qr4.jpeg

** Message: 13:08:27.258: MultipleWallpaperView.vala:183: set visible false generate btn ** Gtk:ERROR:gtkviewport.c:972:gtk_viewport_remove: code should not be reached Bail out! Gtk:ERROR:gtkviewport.c:972:gtk_viewport_remove: code should not be reached

Is this feature dependent on a specific version of Gnome? if so, maybe it should be disabled if the user has an incompatible version

/usr/share/gnome/gnome-version.xml:

<?xml version="1.0"?>
<gnome-version>
 <platform>3</platform>
 <minor>30</minor>
 <micro>2</micro>
 <distributor>Debian</distributor>
 <!--<date></date>-->
</gnome-version>