Snap-store fails w msg Trace/breakpoint trap (core dumped)

just installed from Ubuntu 20.04 LTS “Focal Fossa” - Beta amd64 (20200402)
snap-store does not start
corrado@corrado-HP-x4-ff-0402:~$ snap list
Name Version Rev Tracking Publisher Notes
core 16-2.44.1 8935 latest/stable canonical✓ core
core18 20200311 1705 latest/stable canonical✓ base
gnome-3-34-1804 0+git.2c86692 21 latest/stable/… canonical✓ -
gtk-common-themes 0.1-29-g45e78c5 1474 latest/stable/… canonical✓ -
snap-store 20200401.4cde4f1 336 latest/stable/… canonical✓ -
corrado@corrado-HP-x4-ff-0402:~$ snap-store
16:28:54:0608 Gtk Failed to load module “canberra-gtk-module”
16:28:54:0610 Gtk Failed to load module “canberra-gtk-module”
16:28:54:0612 GLib-GIO Settings schema ‘’ is not installed
Trace/breakpoint trap (core dumped)
corrado@corrado-HP-x4-ff-0402:~$ snap version
snap 2.44.1
snapd 2.44.1
series 16
ubuntu 20.04
kernel 5.4.0-21-generic