a11y warning on transmission-gtk startup

[Batwam]

I am getting the following warning when starting transmission-gtk in the terminal

(transmission-gtk:2317011): Gtk-WARNING **: 14:46:55.654: Unable to acquire the address of the accessibility bus: GDBus.Error:org.freedesktop.DBus.Error.AccessDenied: An AppArmor policy prevents this sender from sending this message to this recipient; type="method_call", sender=":1.254" (uid=1000 pid=2317011 comm="transmission-gtk" label="transmission-gtk (enforce)") interface="org.a11y.Bus" member="GetAddress" error name="(unset)" requested_reply="0" destination="org.a11y.Bus" (uid=1000 pid=673739 comm="/usr/libexec/at-spi-bus-launcher" label="unconfined"). If you are attempting to run GTK without a11y support, GTK_A11Y should be set to 'none'.