fix

ygopro-server.coffee

@@ -526,7 +526,7 @@ CLIENT_is_player = (client, room) ->
     if client == player
       is_player = true 
       break
-  return is_player
+  return is_player and client.pos <= 3
 
 CLIENT_is_able_to_reconnect = (client) ->
   unless settings.modules.reconnect.enabled

ygopro-server.js

@@ -716,7 +716,7 @@
         break;
       }
     }
-    return is_player;
+    return is_player && client.pos <= 3;
   };
 
   CLIENT_is_able_to_reconnect = function(client) {