verify and the authority and issuer serial number mismatch error

I have a chain that fails to verify: brs% openssl verify -verbose -issuer_checks -CAfile serversTA.pem -untrusted 'servers-users.pem' dua.pem dua.pem: CN = config, CN = DSA Manager error 29 at 0 depth lookup:subject issuer mismatch CN = config, CN = DSA Manager error 31 at 0 depth

verify and the authority and issuer serial number mismatch error

I have a chain that fails to verify: brs% openssl verify -verbose -issuer_checks -CAfile serversTA.pem -untrusted 'servers-users.pem' dua.pem dua.pem: CN = config, CN = DSA Manager error 29 at 0 depth lookup:subject issuer mismatch CN = config, CN = DSA Manager error 31 at 0 depth