diff --git a/server/app.py b/server/app.py
index 7e3c44a..b399146 100644
--- a/server/app.py
+++ b/server/app.py
@@ -120,25 +120,27 @@ def mqtt_publisher(ti_receiver):
             artNetPacket = artNet.readPacket()
             # Make sure we actually *have* a packet
             if ti_receiver.poll():
-                tube_index = literal_eval(ti_receiver.recv())
-                if artNetPacket is not None:
-                    #Checks to see if the current packet is for the specified DMX Universe
-                    dmxPacket = artNetPacket.data
-                    # Create MQTT topic based on the universe and channel
-                    if tube_index is not None:
-                        print(tube_index)
-                        for index_row in tube_index:
-                            if artNetPacket.universe == int(index_row[1]):
-                                dmx_address = int(index_row[2])
-                                #Define RGB values per pixel
-                                p1_g, p1_b, p1_r, p2_g, p2_b, p2_r, p3_g, p3_b, p3_r, p4_g, p4_b, p4_r, p5_g, p5_b, p5_r, p6_g, p6_b, p6_r = dmxPacket[dmx_address], dmxPacket[dmx_address+1], dmxPacket[dmx_address+2], dmxPacket[dmx_address+3], dmxPacket[dmx_address+4], dmxPacket[dmx_address+5], dmxPacket[dmx_address+6], dmxPacket[dmx_address+7], dmxPacket[dmx_address+8], dmxPacket[dmx_address+9], dmxPacket[dmx_address+10], dmxPacket[dmx_address+11], dmxPacket[dmx_address+12], dmxPacket[dmx_address+13], dmxPacket[dmx_address+14], dmxPacket[dmx_address+15], dmxPacket[dmx_address+16], dmxPacket[dmx_address+17]
+                ti_data = ti_receiver.recv()
+                if ti_data is not None:
+                    tube_index = literal_eval(ti_data)
+                    if artNetPacket is not None:
+                        #Checks to see if the current packet is for the specified DMX Universe
+                        dmxPacket = artNetPacket.data
+                        # Create MQTT topic based on the universe and channel
+                        if tube_index is not None:
+                            print(tube_index)
+                            for index_row in tube_index:
+                                if artNetPacket.universe == int(index_row[1]):
+                                    dmx_address = int(index_row[2])
+                                    #Define RGB values per pixel
+                                    p1_g, p1_b, p1_r, p2_g, p2_b, p2_r, p3_g, p3_b, p3_r, p4_g, p4_b, p4_r, p5_g, p5_b, p5_r, p6_g, p6_b, p6_r = dmxPacket[dmx_address], dmxPacket[dmx_address+1], dmxPacket[dmx_address+2], dmxPacket[dmx_address+3], dmxPacket[dmx_address+4], dmxPacket[dmx_address+5], dmxPacket[dmx_address+6], dmxPacket[dmx_address+7], dmxPacket[dmx_address+8], dmxPacket[dmx_address+9], dmxPacket[dmx_address+10], dmxPacket[dmx_address+11], dmxPacket[dmx_address+12], dmxPacket[dmx_address+13], dmxPacket[dmx_address+14], dmxPacket[dmx_address+15], dmxPacket[dmx_address+16], dmxPacket[dmx_address+17]
 
-                                # Pixel topics
-                                p1_topic = "tube-"+str(index_row[0])+"/pixel_colors"
+                                    # Pixel topics
+                                    p1_topic = "tube-"+str(index_row[0])+"/pixel_colors"
 
-                                # Publish pixel topic
-                                mqtt_client.publish(p1_topic, str([str([p1_r, p1_g, p1_b]), str([p2_r, p2_g, p2_b]), str([p3_r, p3_g, p3_b]), str([p4_r, p4_g, p4_b]), str([p5_r, p5_g, p5_b]), str([p6_r, p6_g, p6_b])]))
-                tube_index_old = tube_index
+                                    # Publish pixel topic
+                                    mqtt_client.publish(p1_topic, str([str([p1_r, p1_g, p1_b]), str([p2_r, p2_g, p2_b]), str([p3_r, p3_g, p3_b]), str([p4_r, p4_g, p4_b]), str([p5_r, p5_g, p5_b]), str([p6_r, p6_g, p6_b])]))
+                    tube_index_old = tube_index
             else:
                 if artNetPacket is not None:
                     #Checks to see if the current packet is for the specified DMX Universe