Hello,
I have a certificate which replies an error with the given OID above on import. As suggested on the [[ https://lists.gnupg.org/pipermail/gcrypt-devel/2013-June/002212.html | mailing list ]] in 2013 I tried to add the OID to the oid_spec_sha384 array, and the import works perfectly.
Please add this OID to the release for further versions to support this crypt.
Regards, Sven