attempted fix on group shares not appearing (GID not found) (4)

etc/samba/smb.conf

@@ -14,6 +14,7 @@
    winbind use default domain = yes
    winbind enum users = yes
    winbind enum groups = yes
+   winbind cache time = 60
 
    vfs objects = acl_xattr
    map acl inherit = yes
@@ -48,15 +49,11 @@
    full_audit:success = all
    full_audit:failure = all
    full_audit:syslog = false
-   valid users = +"${DOMAIN_USERS_GROUP}"
+   valid users = @"${DOMAIN_USERS_GROUP}"
    hide unreadable = yes
    access based share enum = yes
    ea support = yes
    nt acl support = no
-   security mask = 0000
-   force security mode = 0000
-   directory security mask = 0000
-   force directory security mode = 0000
 
 [Public]
    path = /data/public
@@ -68,7 +65,7 @@
    full_audit:success = all
    full_audit:failure = all
    full_audit:syslog = false
-   valid users = +"${PUBLIC_GROUP}"
+   valid users = @"${PUBLIC_GROUP}"
    force group = "${PUBLIC_GROUP}"
    create mask = 0660
    directory mask = 2770