Both debian-live-9.8.0-i386-lxde.contents and debian-live-9.8.0-i386-mate.contents have all the same hashes. Both debian-live-9.8.0-amd64-lxde.contents and debian-live-9.8.0-amd64-mate.contents have all the same hashes. It is quite possible that two of these four files should have different contents.
See https://cdimage.debian.org/debian-cd/current-live/amd64/iso-hybrid/ and https://cdimage.debian.org/debian-cd/current-live/i386/iso-hybrid/. Greetings from Evert Kuijpers, Tilburg in The Netherlands, hyss...@gmail.com