Changes in the Custom Editor are not applied when restarting Unity

Hi, I created a Custom Editor in Unity and changing the variable in it, I change the inscription on the button.

Unfortunately, when I restart Unity, I have to press the object for changes to occur. Otherwise they are all the same settings.

How to make them change when Unity starts changing immediately? The first picture - As it should be Second picture - After a scene is loaded or Unity restarted.

Code1:

 [CustomEditor(typeof(UiButtonLevelScript))]
 public class UiButtonLevelInspector : Editor
 {
     bool showObjectList = false;
     public override void OnInspectorGUI()
     {
         UiButtonLevelScript uiButtonScript = (UiButtonLevelScript)target;
 
         showObjectList = EditorGUILayout.BeginFoldoutHeaderGroup(showObjectList, "Obiekty");
         if (showObjectList)
         {
             GUILayout.Label("Główny przycisk.");
             uiButtonScript.ButtonLevel = (Button)EditorGUILayout.ObjectField(uiButtonScript.ButtonLevel, typeof(Button), true);
             GUILayout.Label("Pole tekstowe przycisku.");
             uiButtonScript.TextButton = (Text)EditorGUILayout.ObjectField(uiButtonScript.TextButton, typeof(Text), true);
         }
         EditorGUILayout.EndFoldoutHeaderGroup();
 
         GUILayout.Label("Poziom do obsługi przez przycisk");
         GUILayout.Label("Lista poziomów zapisana w GlobalVariable");
         uiButtonScript.LvlSelect = (GlobalVariable.LvlList)
             EditorGUILayout.EnumPopup("Level: ", uiButtonScript.LvlSelect);
 
         if (GUI.changed)
         {
             EditorUtility.SetDirty(uiButtonScript);
             EditorSceneManager.MarkSceneDirty(uiButtonScript.gameObject.scene);
             if (uiButtonScript.ButtonLevel && uiButtonScript.TextButton)
             {
                 uiButtonScript.LvlVariableData = GlobalVariable.lvlVariablesData[(int)uiButtonScript.LvlSelect];
                 uiButtonScript.TextButton.text = uiButtonScript.LvlVariableData.GetTextButton();
                 if (uiButtonScript.LvlVariableData.GetFontSize() != 0)
                     uiButtonScript.TextButton.fontSize = uiButtonScript.LvlVariableData.GetFontSize();
                 uiButtonScript.ButtonLevel.name = "UiButtonLevel " + uiButtonScript.LvlVariableData.GetTextButton();
             }
         }
     }
     
     private void OnEnable()
     {
         UiButtonLevelScript uiButtonScript = (UiButtonLevelScript)target;
         EditorUtility.SetDirty(uiButtonScript);
         if (uiButtonScript.ButtonLevel && uiButtonScript.TextButton)
         {
             uiButtonScript.LvlVariableData = GlobalVariable.lvlVariablesData[(int)uiButtonScript.LvlSelect];
             uiButtonScript.TextButton.text = uiButtonScript.LvlVariableData.GetTextButton();
             if (uiButtonScript.LvlVariableData.GetFontSize() != 0)
                 uiButtonScript.TextButton.fontSize = uiButtonScript.LvlVariableData.GetFontSize();
             uiButtonScript.ButtonLevel.name = "UiButtonLevel " + uiButtonScript.LvlVariableData.GetTextButton();
         }
     }
 }
 

Code2:

 public class UiButtonLevelScript : MonoBehaviour
 {
     #region Variable
     [Header("Przycisk")]
     public Button ButtonLevel;
     [Header("Pole tekstowe.")]
     public Text TextButton;
     [Header("Dane do danego poziomu.")]
     public LvlVariable LvlVariableData;
     [Header("Wybrany poziom do obsługi.")]
     public GlobalVariable.LvlList LvlSelect;
     #endregion
    
 }
 

Code1: