diff --git a/resources/logback.xml b/resources/logback.xml
index 2f3378b..a795224 100644
--- a/resources/logback.xml
+++ b/resources/logback.xml
@@ -9,5 +9,6 @@
 
   <root level="debug">
     <appender-ref ref="STDOUT" />
+    <logger name="de.srsoftware.web4rail.ControlUnit" level="WARN"/>
   </root>
 </configuration>
\ No newline at end of file
diff --git a/src/main/java/de/srsoftware/web4rail/ControlUnit.java b/src/main/java/de/srsoftware/web4rail/ControlUnit.java
index c390e8f..8e07b25 100644
--- a/src/main/java/de/srsoftware/web4rail/ControlUnit.java
+++ b/src/main/java/de/srsoftware/web4rail/ControlUnit.java
@@ -39,6 +39,7 @@ public class ControlUnit extends Thread implements Constants{
 	private static final String MODE_INFO = "INFO";
 	private static final String MODE_COMMAND = "COMMAND";
 	protected static final String FEEDBACK = "FB";
+	protected static final String ACESSORY = "GA";
 	
 	private String host = DEFAULT_HOST;
 	private int port = DEFAULT_PORT;
@@ -315,6 +316,7 @@ public class ControlUnit extends Thread implements Constants{
 								int addr = Integer.parseInt(parts[5]);
 								boolean active = !parts[6].equals("0");
 								ControlUnit.this.plan.sensor(addr,active);
+							case ACESSORY:
 								break;
 							default:
 								LOG.debug("Info thread received: {}",line);
diff --git a/src/main/java/de/srsoftware/web4rail/Plan.java b/src/main/java/de/srsoftware/web4rail/Plan.java
index b153aa8..84f5184 100644
--- a/src/main/java/de/srsoftware/web4rail/Plan.java
+++ b/src/main/java/de/srsoftware/web4rail/Plan.java
@@ -575,7 +575,12 @@ public class Plan extends BaseClass{
 	 * @return
 	 */
 	Route registerRoute(Route newRoute) {
-		for (Tile tile: newRoute.path()) tile.add(newRoute);
+		for (Tile tile: newRoute.path()) {
+			if (isNull(tile)) {
+				System.err.println("--");
+			}
+			tile.add(newRoute);
+		}
 		int routeId = newRoute.id();
 		Route existingRoute = routes.get(routeId);
 		if (isSet(existingRoute)) newRoute.addPropertiesFrom(existingRoute);
diff --git a/src/main/java/de/srsoftware/web4rail/Route.java b/src/main/java/de/srsoftware/web4rail/Route.java
index 6987d88..f8a2bc1 100644
--- a/src/main/java/de/srsoftware/web4rail/Route.java
+++ b/src/main/java/de/srsoftware/web4rail/Route.java
@@ -461,11 +461,15 @@ public class Route extends BaseClass{
 	
 	private Route load(JSONObject json,Plan plan) {
 		if (json.has(ID)) id = json.getInt(ID);
+		if (json.has(NAME)) name(json.getString(NAME));
 		JSONArray pathIds = json.getJSONArray(PATH);
 		startDirection = Direction.valueOf(json.getString(START_DIRECTION));
 		endDirection = Direction.valueOf(json.getString(END_DIRECTION));
 		for (Object tileId : pathIds) {
 			Tile tile = plan.get((String) tileId,false);
+			if (isNull(tile)) {
+				continue;
+			}
 			if (isNull(startBlock)) {
 				begin((Block) tile, startDirection);
 			} else if (tile instanceof Block) { // make sure, endDirection is set on last block
@@ -474,7 +478,10 @@ public class Route extends BaseClass{
 				add(tile, null);
 			}
 		}
-		if (json.has(NAME)) name(json.getString(NAME));
+		if (isNull(path) || path.isEmpty()) {
+			LOG.warn("{} has no tiles. It will be ignored.",this);
+			return null;
+		}
 		if (json.has(TURNOUTS)) {
 			JSONArray turnouts = json.getJSONArray(TURNOUTS);
 			for (int i=0; i<turnouts.length();i++) {
diff --git a/src/main/java/de/srsoftware/web4rail/moving/Train.java b/src/main/java/de/srsoftware/web4rail/moving/Train.java
index a6c31ea..b1f13d4 100644
--- a/src/main/java/de/srsoftware/web4rail/moving/Train.java
+++ b/src/main/java/de/srsoftware/web4rail/moving/Train.java
@@ -534,7 +534,12 @@ public class Train extends BaseClass implements Comparable<Train> {
 	}
 	
 	private void reverseTrace() {
-		// TODO Auto-generated method stub
+		LinkedList<Tile> reversed = new LinkedList<Tile>();
+		LOG.debug("Trace: {}",trace);
+		while (!trace.isEmpty()) reversed.addFirst(trace.removeFirst());
+		trace = reversed;
+		LOG.debug("reversed: {}",trace);
+		reversed = null;
 	}
 
 	public static void saveAll(String filename) throws IOException {
diff --git a/src/main/java/de/srsoftware/web4rail/tags/Checkbox.java b/src/main/java/de/srsoftware/web4rail/tags/Checkbox.java
index dca200f..4666ae6 100644
--- a/src/main/java/de/srsoftware/web4rail/tags/Checkbox.java
+++ b/src/main/java/de/srsoftware/web4rail/tags/Checkbox.java
@@ -11,8 +11,7 @@ public class Checkbox extends Tag {
 		Tag checkbox = new Tag("input").attr("type", "checkbox").attr("name", name);
 		if (preCheck) checkbox.attr("checked", "checked");
 		checkbox.addTo(this);
-		content(label);
-		
+		content(label);		
 	}
 
 }