Fails to download CentOS 8
Boxes 3.34.3 offers two ways to download CentOS 8, both of which are broken. Boxes displays a notification that says "Download failed" and in the terminal, I see:
(gnome-boxes:35113): Boxes-WARNING **: 10:22:49.202: wizard.vala:666: Failed downloading media 'http://isoredirect.centos.org/centos/8/isos/x86_64/CentOS-8-x86_64-1905-boot.iso'! Not Found
(gnome-boxes:35113): Boxes-WARNING **: 10:23:23.312: wizard.vala:666: Failed downloading media 'http://isoredirect.centos.org/centos/8/isos/x86_64/CentOS-8-x86_64-1905-dvd1.iso'! Not Found