diff --git a/diylc/diylc-core/lib/app-framework.jar b/diylc/diylc-core/lib/app-framework.jar
index 87c33d37..b7e1a67c 100644
Binary files a/diylc/diylc-core/lib/app-framework.jar and b/diylc/diylc-core/lib/app-framework.jar differ
diff --git a/diylc/diylc-library/lib/app-framework.jar b/diylc/diylc-library/lib/app-framework.jar
index 87c33d37..b7e1a67c 100644
Binary files a/diylc/diylc-library/lib/app-framework.jar and b/diylc/diylc-library/lib/app-framework.jar differ
diff --git a/diylc/diylc-swing/lib/app-framework.jar b/diylc/diylc-swing/lib/app-framework.jar
index 87c33d37..b7e1a67c 100644
Binary files a/diylc/diylc-swing/lib/app-framework.jar and b/diylc/diylc-swing/lib/app-framework.jar differ
diff --git a/diylc/diylc-swing/src/org/diylc/swing/plugins/tree/TreePanel.java b/diylc/diylc-swing/src/org/diylc/swing/plugins/tree/TreePanel.java
index 196a4cb5..2a87b431 100644
--- a/diylc/diylc-swing/src/org/diylc/swing/plugins/tree/TreePanel.java
+++ b/diylc/diylc-swing/src/org/diylc/swing/plugins/tree/TreePanel.java
@@ -245,7 +245,7 @@ public class TreePanel extends JPanel {
 
         @Override
         public void mouseClicked(MouseEvent e) {
-          if (SwingUtilities.isLeftMouseButton(e)) {
+          if (e == null || SwingUtilities.isLeftMouseButton(e)) {
             try {
               plugInPort.loadBlock(block);
             } catch (InvalidBlockException e1) {
diff --git a/diylc/diylc-swing/update.xml b/diylc/diylc-swing/update.xml
index 9828bda7..f1a3d188 100644
--- a/diylc/diylc-swing/update.xml
+++ b/diylc/diylc-swing/update.xml
@@ -1844,6 +1844,26 @@
 				</org.diylc.appframework.update.Change>
 			</changes>
 			<url>https://github.com/bancika/diy-layout-creator/releases</url>
+		</org.diylc.appframework.update.Version>
+		<org.diylc.appframework.update.Version>
+			<versionNumber>
+				<major>3</major>
+				<minor>41</minor>
+				<build>1</build>
+			</versionNumber>
+			<releaseDate>2018-12-11 00:00:00.000 CET</releaseDate>
+			<name></name>
+			<changes>
+				<org.diylc.appframework.update.Change>
+					<changeType>NEW_FEATURE</changeType>
+					<description>Automatically delete logs older than a week</description>	
+				</org.diylc.appframework.update.Change>		
+				<org.diylc.appframework.update.Change>
+					<changeType>BUG_FIX</changeType>
+					<description>Fixed building blocks that stopped working in version 3.40.0</description>
+				</org.diylc.appframework.update.Change>
+			</changes>
+			<url>https://github.com/bancika/diy-layout-creator/releases</url>
 		</org.diylc.appframework.update.Version>			
 	</a>
 </java.util.Arrays_-ArrayList>