[Unity] SpriteEditor bug on Linux

SpriteEditorMenu.cs

/*
  Path to file
  Unity/<Version>/Editor/Data/Resources/PackageManager/BuiltInPackages/com.unity.2d.sprite/Editor/SpriteEditor/SpriteEditorMenu.cs
  
  Issue: 
  https://issuetracker.unity3d.com/issues/linux-sprite-editor-slice-window-disappears-when-trying-to-change-slicing-type

*/

private void Init(Rect buttonRect, SpriteFrameModule sf, ITextureDataProvider dataProvider)
{
    // .................... 
    // increase height of popup to see "Slice" button 
    float windowHeight = 295;
    // ....................
}

private void OnGUI ()
{
    
    // .....................................
    
    
    SpriteEditorMenuSetting.SlicingType slicingType = s_Setting.slicingType;

    EditorGUI.BeginChangeCheck();

    Rect automatic = (Rect)EditorGUILayout.BeginVertical("Button");
    if (GUI.Button(automatic, GUIContent.none)) slicingType = SpriteEditorMenuSetting.SlicingType.Automatic;
    GUILayout.Label("Automatic");
    EditorGUILayout.EndVertical();

    Rect gridByCellSize = (Rect)EditorGUILayout.BeginVertical("Button");
    if (GUI.Button(gridByCellSize, GUIContent.none)) slicingType = SpriteEditorMenuSetting.SlicingType.GridByCellSize;
    GUILayout.Label("GridByCellSize");
    EditorGUILayout.EndVertical();

    Rect gridByCellCount = (Rect)EditorGUILayout.BeginVertical("Button");
    if (GUI.Button(gridByCellCount, GUIContent.none)) slicingType = SpriteEditorMenuSetting.SlicingType.GridByCellCount;
    GUILayout.Label("GridByCellCount");
    EditorGUILayout.EndVertical();

    // When open Enum Popup native GUI open dropdron list and Unity popup closing
    // slicingType = (SpriteEditorMenuSetting.SlicingType)EditorGUILayout.EnumPopup(s_Styles.typeLabel, slicingType);
    // 
    if (EditorGUI.EndChangeCheck()) {
        Undo.RegisterCompleteObjectUndo(s_Setting, "Change slicing type");
        s_Setting.slicingType = slicingType;
    }
    
    // ...........................
}