gnome-boxes crashes when trying to open windows 10 iso file to create new vm

[sevku]

gnome-boxes crashes when trying to open windows 10 iso file to create new vm.

$ gnome-boxes

(gnome-boxes:20404): Gtk-WARNING **: 13:18:47.951: GtkFlowBox with a model will ignore sort and filter functions

(gnome-boxes:20404): Gtk-WARNING **: 13:18:47.952: GtkListBox with a model will ignore sort and filter functions

(gnome-boxes:20404): Boxes-WARNING **: 13:18:48.608: util-app.vala:178: Failed to find OS with id: 'http://endlessos.com/eos/3.6': Unknown OS ID 'http://endlessos.com/eos/3.6'

(gnome-boxes:20404): Boxes-WARNING **: 13:18:48.611: util-app.vala:178: Failed to find OS with id: 'http://endlessos.com/eos/3.6': Unknown OS ID 'http://endlessos.com/eos/3.6'

(gnome-boxes:20404): Boxes-WARNING **: 13:18:48.736: util-app.vala:178: Failed to find OS with id: 'http://endlessos.com/eos/3.6': Unknown OS ID 'http://endlessos.com/eos/3.6'

(gnome-boxes:20404): GLib-CRITICAL **: 13:18:58.447: g_variant_get_child_value: assertion 'index_ < g_variant_n_children (value)' failed
Segmentation fault (core dumped)

ProblemType: Bug
DistroRelease: Ubuntu 19.10
Package: gnome-boxes 3.34.1-1
ProcVersionSignature: Ubuntu 5.3.0-24.26-generic 5.3.10
Uname: Linux 5.3.0-24-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu8.2
Architecture: amd64
CurrentDesktop: KDE
Date: Sun Dec 8 10:51:54 2019
InstallationDate: Installed on 2019-11-26 (12 days ago)
InstallationMedia: Kubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017)
SourcePackage: gnome-boxes
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.