Serializing/deserializing List of custom class.

Hi, I have problems with deserializing List of custom class. So, lets start from my actual code. I have a simple class called Key, here it is:

 public class Key
 {
  public Key(string keyName, KeyCode keyCode)
  {
   this.keyName = keyName;
   this.keyCode = keyCode;
  }
 
  public string keyName;
  public KeyCode keyCode;
 }

And i have script with a List that is a singleton:

 public class eInput : MonoBechaviour
 {
  private static eInput instance;
 public List<Key> Keys;
     public static eInput Instance
     {
         get
         {
             if (instance == null) //if instance variable is not assigned
             {
                 eInput[] eInputs = GameObject.FindObjectsOfType<eInput>(); //Search for all GOs of eInput type
                 if (eInputs != null) //If search will return something...
                 {
                     if (eInputs.Length > 1) //...and it's more that one object
                     {
                         instance = eInputs[0]; //Assign first object to instance
                         for (int i = 0; i < eInputs.Length; i++) //Destroy the rest
                         {
                             Destroy(eInputs[i].gameObject);
                         }
                     }
                     else if (eInputs.Length == 1)//...and it's only one object
                     {
                         instance = eInputs[0]; //Assign it to instance
                     }
                     else if (eInputs.Length == 0) //...and it isn't any object
                     {
                         //Create new one and assign it to instance
                         instance = new GameObject("eInput Manager", typeof(eInput)).GetComponent<eInput>();
                         DontDestroyOnLoad(instance);
                     }
                 }
                 else //otherwise, create new object
                 {
                     instance = new GameObject("eInput Manager", typeof(eInput)).GetComponent<eInput>();
                     DontDestroyOnLoad(instance);
                 }
             }
 
             return instance;
         }
     }
 }

And here are my methods for serializing/deserializing List, it saves them in simple format: "keyName keyCode" eg: "Jump Space".

 public void Save()
     {
         using(StreamWriter sw = File.CreateText(Application.streamingAssetsPath + Path.DirectorySeparatorChar + "Keys.txt"))
         {
             foreach(Key k in Keys)
             {
                 sw.WriteLine(string.Format("{0} {1}", k.KeyName, k.keyCode));
             }
         }
     }

 public void Load()
     {
         string[] lines = File.ReadAllLines(Application.streamingAssetsPath + Path.DirectorySeparatorChar + "Keys.txt");
         foreach(string line in lines)
         {
             string[] values = line.Split(' ');
             eInput.Instance.Keys.Add(new Key((KeyCode)Enum.Parse(typeof(KeyCode), values[1]), values[0]));
         }
     }

The problem is when I try to deserialize List I get a list with proper lenght (if I serialize 10 Keys i get 10 Keys) but they fields keyName is always "" and keyCode is always KeyCode.None. Anybody could help me with this? I need to note that I tried XmlSerializer too but with same results.

Thanks in advance,
Paul