gentoo-current.xz.sqfs: FAILED sha512sum: WARNING: 1 computed checksum did NOT match

[NiKiZe]

What is wrong?

+ gpg --verify stage3-amd64-openrc-20210801T170533Z.tar.xz.DIGESTS.asc
gpg: Signature made Sun Aug  1 18:01:05 2021 UTC
gpg:                using RSA key 534E4209AB49EEE1C19D96162C44695DB9F6043D
gpg: Good signature from "Gentoo Linux Release Engineering (Automated Weekly Release Key) <[email protected]>" [unknown]
gpg: WARNING: This key is not certified with a trusted signature!
gpg:          There is no indication that the signature belongs to the owner.
Primary key fingerprint: 13EB BDBE DE7A 1277 5DFD  B1BA BB57 2E0E 2D18 2910
     Subkey fingerprint: 534E 4209 AB49 EEE1 C19D  9616 2C44 695D B9F6 043D
+ echo 'Verifying stage3 SHA512 ...'
Verifying stage3 SHA512 ...
+ sha512sum -c
++ grep -A1 SHA512 stage3-amd64-openrc-20210801T170533Z.tar.xz.DIGESTS.asc
++ grep 'stage3-amd64-openrc-20210801T170533Z.tar.xz$'
+ echo 'a74a6d684eba70773be37ae0126bb7b8a2f7d27b923d9283a9d4cc4e8233bf5c4fc8f50e1b56be3e255e8de91342ca5f6d595a61fb3dee42747bc005fd30e29a  stage3-amd64-openrc-20210801T170533Z.tar.xz'
stage3-amd64-openrc-20210801T170533Z.tar.xz: OK
+ echo ' - Awesome! stage3 verification looks good.'
 - Awesome! stage3 verification looks good.
+ rm stage3-amd64-openrc-20210801T170533Z.tar.xz.DIGESTS.asc
+ tar xpf stage3-amd64-openrc-20210801T170533Z.tar.xz '--xattrs-include=*.*' --numeric-owner

real    0m12.760s
user    0m10.998s
sys     0m1.805s
+ wait
+ wait
+ gpg --verify sha512sum.txt
gpg: Signature made Tue Aug  3 01:47:09 2021 UTC
gpg:                using RSA key E1D6ABB63BFCFB4BA02FDF1CEC590EEAC9189250
gpg: Good signature from "Gentoo ebuild repository signing key (Automated Signing Key) <[email protected]>" [unknown]
gpg: WARNING: This key is not certified with a trusted signature!
gpg:          There is no indication that the signature belongs to the owner.
Primary key fingerprint: DCD0 5B71 EAB9 4199 527F  44AC DB6B 8C1F 96D8 BF6D
     Subkey fingerprint: E1D6 ABB6 3BFC FB4B A02F  DF1C EC59 0EEA C918 9250
+ echo 'Verifying snapshot SHA512 ...'
Verifying snapshot SHA512 ...
+ sha512sum -c
++ grep gentoo-current.xz.sqfs sha512sum.txt
+ echo 'ee42842ac167c79b9941aceae17964d36ce3e176fef6ca87cda2f76b0b3885519d729839249b8cf3578ea524e73c245d59a5c21ebedd48f4bfc57ba0fa2d4499  gentoo-current.xz.sqfs'
gentoo-current.xz.sqfs: FAILED
sha512sum: WARNING: 1 computed checksum did NOT match
+ exit 2

Is this a timing issue on downloads?
Should there be retries if this happens?

[NiKiZe]

Maybe the checksums should be checked and verified and displayed.
And in the case of snapshot, try to grab line from sha512sum file and see if it matches the day before.
https://distfiles.gentoo.org/snapshots/squashfs/sha512sum.txt

67403a39123d40c626c8398726f6121707de074c3c7924b317283d7abb9f7f2f028011c0f0bb6f265ba6e6f5a7dd552be34d89ff0c28d2c9fae1187ce08edba9  gentoo-20210801.lzo.sqfs
4ee30bf9f4e36b2630981eb6e75e8093babaab1d0646f21d6c4d1479dee63cfb18f32cdc1cc51553df2c97bf77be9546b09867cb60e15b3ba277c4fe0e65f378  gentoo-20210801.xz.sqfs
afc7e0b202be2a2a5f90b34d52cc5e580cf7f80eb7cfde6045a4b6c7d697ab5fda54b774ebb659b70c74b8b86599d8cfad88fd64cfa8494ac62dd177ec1ddf60  gentoo-20210802.lzo.sqfs
ee42842ac167c79b9941aceae17964d36ce3e176fef6ca87cda2f76b0b3885519d729839249b8cf3578ea524e73c245d59a5c21ebedd48f4bfc57ba0fa2d4499  gentoo-20210802.xz.sqfs
afc7e0b202be2a2a5f90b34d52cc5e580cf7f80eb7cfde6045a4b6c7d697ab5fda54b774ebb659b70c74b8b86599d8cfad88fd64cfa8494ac62dd177ec1ddf60  gentoo-current.lzo.sqfs
ee42842ac167c79b9941aceae17964d36ce3e176fef6ca87cda2f76b0b3885519d729839249b8cf3578ea524e73c245d59a5c21ebedd48f4bfc57ba0fa2d4499  gentoo-current.xz.sqfs