Prevent crash when invalid or not yet created LAN games are discovered.

OpenRA.Mods.Common/Widgets/Logic/ServerListLogic.cs

@@ -339,6 +339,11 @@ namespace OpenRA.Mods.Common.Widgets.Logic
 				var lanGames = new List<GameServer>();
 				foreach (var bl in lanGameLocations)
 				{
+					try
+					{
+						if (string.IsNullOrEmpty(bl.Data))
+							continue;
+
 						var game = MiniYaml.FromString(bl.Data)[0].Value;
 						var idNode = game.Nodes.FirstOrDefault(n => n.Key == "Id");
 
@@ -352,11 +357,12 @@ namespace OpenRA.Mods.Common.Widgets.Logic
 							if (addressNode != null)
 								addressNode.Value.Value = bl.Address.ToString().Split(':')[0] + ":" + addressNode.Value.Value.Split(':')[1];
 
-						try
-						{
 							lanGames.Add(new GameServer(game));
 						}
-						catch { }
+					}
+					catch
+					{
+						// Ignore any invalid LAN games advertised.
 					}
 				}