Update to 42.0 loses access to existing virtual machines

After updating Boxes to 42.0 and libosinfo 1.9 I have lost access to my virtual machine. Running Boxes at the command line reports:

(gnome-boxes:2): Gtk-WARNING **: 10:34:40.173: GtkFlowBox with a model will ignore sort and filter functions

(gnome-boxes:2): Gtk-WARNING **: 10:34:40.174: GtkListBox with a model will ignore sort and filter functions
Error setting up default broker: Failed to start storage pool: cannot open directory '/home/neil/.var/app/org.gnome.Boxes/data/gnome-boxes/images': No such file or directory

(gnome-boxes:2): Boxes-WARNING **: 10:34:40.597: (../src/app.vala:443):boxes_app_setup_default_source_co: runtime check failed: (default_connection != null)

The directory indicated does exist in my home directory and has sifficient read access e.g.:

[neil@vivobook ~]$ ls -lR .var/app/org.gnome.Boxes/data
.var/app/org.gnome.Boxes/data:
total 4
drwxr-xr-x. 1 neil neil 12 Apr 5 2021 gnome-boxes
drwxr-xr-x. 1 neil neil 0 May 2 2021 keyrings
-rw-r--r--. 1 neil neil 218 Feb 25 13:28 recently-used.xbel

.var/app/org.gnome.Boxes/data/gnome-boxes:
total 0
drwxr-xr-x. 1 neil neil 22 May 5 2021 images

.var/app/org.gnome.Boxes/data/gnome-boxes/images:
total 7262016
-rw-r--r--. 1 neil neil 7436304384 Feb 25 13:28 freebsd12.2

.var/app/org.gnome.Boxes/data/keyrings:
total 0