diff --git a/platformio.ini b/platformio.ini
index e6fbced..6454f13 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -18,4 +18,4 @@ monitor_port = /dev/cu.wchusbserial*
 monitor_speed = 74880
 monitor_filters = default, time, send_on_enter, esp8266_exception_decoder
 lib_deps = fastled/FastLED @ 3.4.0
-    PubSubClient
\ No newline at end of file
+    PubSubClient @ 2.8
\ No newline at end of file
diff --git a/src/corner.cpp b/src/corner.cpp
index fd27148..eddfaa2 100644
--- a/src/corner.cpp
+++ b/src/corner.cpp
@@ -44,13 +44,13 @@ bool Corner::reached_level(uint16_t level) {
 }
 
 void Corner::blend_to(CRGB target, uint16_t eid, uint8_t effect_speed) {
-	LOGln("blendTo called. Corner: %p, target: %d,%d,%d, eid: %d, 'old' effect_id: %d, speed: %d", this, target.r, target.g, target.b, eid, effect_id, effect_speed);
+	//LOGln("blendTo called. Corner: %p, target: %d,%d,%d, eid: %d, 'old' effect_id: %d, speed: %d", this, target.r, target.g, target.b, eid, effect_id, effect_speed);
 	if (eid==0) {
 		this->effect_id = random16();
-		LOGln("Set effect_id to %d", this->effect_id);
+		//LOGln("Set effect_id to %d", this->effect_id);
 	} else {
 		if (this->effect_id == eid) {
-			LOGln("'Old' effect. Doing nothing.");
+			//LOGln("'Old' effect. Doing nothing.");
 			return;
 		}
 		this->effect_id = eid;
diff --git a/src/main.cpp b/src/main.cpp
index dc8e5ce..9a0be10 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -77,7 +77,7 @@ void setup_fastled() {
 	FastLED.addLeds<WS2812B, 5, GRB>(leds, LEDS_PER_CORNER * CORNERS_PER_PART * NODE_COUNT).setCorrection(TypicalLEDStrip);
 	LOGln("LEDs:    %3d", LED_COUNT);
 	FastLED.setBrightness(255);
-	FastLED.setDither(DISABLE_DITHER);
+	//FastLED.setDither(DISABLE_DITHER);
 	FastLED.setMaxPowerInVoltsAndMilliamps(5, MAX_MILLIAMPS);
 	set_all_leds(CRGB::Black);
 }
@@ -195,14 +195,19 @@ void loop() {
 				}
 
 			} else if (active_mode == AM_OFF) {
+				LOGln("Blanking.");
 				for(Node* node : nodes) {
 					node->set_color(CRGB::Black);
+					node->draw();
 				}
 			} else { // This includes AM_ERROR
 				for(Node* node : nodes) {
 					node->set_color(CRGB::Black);
 				}
 				nodes[0]->set_color(CRGB::Red);
+				for(Node* node : nodes) {
+					node->draw();
+				}
 			}
 
 			last_loop = millis();
diff --git a/src/mqtt.cpp b/src/mqtt.cpp
index 0260612..18d4f4c 100644
--- a/src/mqtt.cpp
+++ b/src/mqtt.cpp
@@ -24,16 +24,24 @@ void callback(char* topic, byte* pl, unsigned int length) {
     uint16_t duration = 0;
     AnimationMode new_mode = AM_NONE;
     String current_part;
+    LOGln("Received command %s", payload.c_str());
     while (payload.length() > 0) {
         int offset = payload.indexOf("&");
         if (offset != -1) {
             current_part = payload.substring(0, offset);
             payload = payload.substring(offset + 1);
+        } else {
+            current_part = payload;
+            payload = "";
         }
         offset = current_part.indexOf("=");
-        if (offset==-1) continue;
+        if (offset==-1) {
+            LOGln("Parameter without '=' detected: %s", current_part.c_str());
+            continue;
+        }
         String key = current_part.substring(0, offset);
         String value = current_part.substring(offset+1);
+        LOGln("  Processing key %s with value %s", key.c_str(), value.c_str());
 
         if (key.equals("mode")) {
             if (value.equals("nodes")) { new_mode = AM_NODES; }
@@ -59,6 +67,7 @@ void callback(char* topic, byte* pl, unsigned int length) {
             LOGln("Unknown key '%s'. (For reference: Value is '%s'.)", key.c_str(), value.c_str());
         }
     }
+    LOGln("Finished processing the command.");
 
     if (new_mode != AM_NONE) {
         if (duration > 0) {
diff --git a/src/node.cpp b/src/node.cpp
index 8f2c463..e7c99ed 100644
--- a/src/node.cpp
+++ b/src/node.cpp
@@ -57,7 +57,7 @@ Node* Node::create_neighbour(uint8_t edge) {
 }
 
 void Node::blend_to(CRGB color, uint16_t effect_id, uint8_t effect_speed) {
-	LOGln("Node::blend_to called. this:%p", this);
+	//LOGln("Node::blend_to called. this:%p", this);
 	if (effect_speed == 0) effect_speed = random8(2)+1;
 	if (effect_id == 0) effect_id = random16();
 	for(Corner* corner : this->_corners) {