diff -r 007588fb6549 -r d917c209529d controls/LibraryPanel.py
--- a/controls/LibraryPanel.py	Fri Apr 22 16:59:47 2016 +0300
+++ b/controls/LibraryPanel.py	Fri Apr 22 17:02:18 2016 +0300
@@ -397,7 +397,7 @@
             item_pydata = self.Tree.GetPyData(item)
             
             # Item is a block category
-            if item_pydata["type"] == CATEGORY:
+            if (item == root) or item_pydata["type"] == CATEGORY:
                 
                 # Get category first or last child according to search mode 
                 # defined