Nfs4_setfacl reports error on files of mounted folder

I mounted an nfsv4 folder (both client and server are CentOS 7.4) via command $ sudo mount -t nfs -o v4.0,sec=krb5 ark-centos7-ker.qa.arkivio.com:/export/nfs1 /nfs4-mnt-dir created a file via: touch 11, then set file's ACL get failed with command $ sudo nfs4_setfacl -a A::auto-stor@qa.arkivio.com:rxtncy /nfs4-mnt-dir/11 [sudo] password for auto-stor@qa.arkivio.com: Failed setxattr operation: Invalid argument it seems complaining the parameter auto-stor@qa.arkivio.com is invalid, but this user is already recognized by both nfs4 client and server. $ getent passwd auto-stor@qa.arkivio.com auto-stor@qa.arkivio.com:*:1712401226:1712400513:auto-stor:/home/auto-stor@qa.arkivio.com:/bin/bash $ id auto-stor@qa.arkivio.com uid=1712401226(auto-stor@qa.arkivio.com) gid=1712400513(domain users@qa.arkivio.com) groups=1712400513(domain users@qa.a rkivio.com),10(wheel),1712439592(autostoradmins@qa.arkivio.com),1712439438(certsvc_dcom_access@qa.arkivio.com),171243989 6(passwordpropdeny@qa.arkivio.com),1712400512(domain admins@qa.arkivio.com),1712439802(ats_steph_testgroup@qa.arkivio.co m) What is missing in my configuration?