cluster.ini dont effect?

[StarsAqua]

I set my max_players to 6 in my cluster.ini,but when i start my server its max_players changes to 16.

And this happens with my PauseWhenEmpty option too,but i can change my server name and password.

What's wrong with my cluster.ini?

here's my cluster.ini:

[GAMEPLAY]
game_mode = survival
max_players = 6
pvp = false
pause_when_empty = true

[NETWORK]
cluster_description = xxx
cluster_name = xxxx
cluster_intention = cooperative
cluster_password = xxxx
enable_vote_kick = true

[MISC]
console_enabled = true


[SHARD]
shard_enabled = true
bind_ip = 127.0.0.1
master_ip = 127.0.0.1
master_port = 10999
cluster_key = xxxx

And here's my server log file:

 

server_log.txt

[StarsAqua]

About to start a server with the following settings:
  Dedicated: true
  Online: true
  Passworded: true
  ServerPort: 11000
  SteamAuthPort: 8768
  SteamMasterServerPort: 27018
  ClanID: false
  ClanOnly: false
  ClanAdmin: false
  LanOnly: false
  FriendsOnly: false
  EnablePunchthrough: false
  EnableAutosaver: false
  PVP: false
  MaxPlayers: 16
  GameMode: survival
  OverridenDNS: 
  PauseWhenEmpty: false
  InternetBroadcasting: true
  Intent: cooperative