samba - Jul 2018 - 4.4.8 - There is not enough space on ...

I recently upgrade an older version of Samba (3.x) to a less older version
of Samba (4.4.8) and now have users reporting the following error.

There is not enough disk space on home (servername).  You need an
additional XXX to copy these files.

I see some older posts referring to adjusting, *min receivefile size = *
*0, *however I do not have this set and the default is 0.

I don't see anything in the log files to point me at anything, if have
checked to make sure quotas are turned off

# quota -v user
Disk quotas for user (uid 1001):
Filesystem     usage  quota  limit    timeleft  files  quota  limit
timeleft

Solaris 11

# pkg info samba
             Name: service/network/samba
             Summary: samba - A Windows SMB/CIFS fileserver for UNIX
             Category: System/File System
             State: Installed
             Publisher: solaris
             Version: 4.4.8
             Build Release: 5.11
             Branch: 0.175.3.18.0.3.0
             Packaging Date: February 28, 2017 03:48:25 PM
             Size: 75.55 MB
             FMRI: pkg://solaris/service/network/samba at 4.4.8
,5.11-0.175.3.18.0.3.0:20170228T154825Z


smb.conf
[global]
  allow insecure wide links = yes
   workgroup = MYGROUP
   server string = Samba Server
   server role = standalone server
   log file = /var/samba/log/log.%m
   max log size = 50

[home]
    comment = Home Directories
    read only = No
    inherit acls = Yes
    map archive = No
    map readonly = no
    vfs objects = zfsacl
    zfsacl: acesort = dontcare
    nfs4:chown = yes
    nfs4:acedup = merge
    nfs4:mode = special
    path=%H
    follow symlinks = yes
    wide links = yes

Any help would be greatly appreciated.
Jeff