Hi,
What brand are your SD cards? An error of Source and destination checksums do not match: 9bf68081d38a4b6d !== 4ef30572685fb9a1 seems to indicate that there’s something wrong with the card. See: /dev/disk2: Source and Destination checksum do not match: blah blah
You could try following this guide to see if there is something wrong with your SD card: Verifying the integrity of an SD card
Thanks, let us know!
Christina