diff --git a/MicroDexed.ino b/MicroDexed.ino
index 2d18004..635deaa 100644
--- a/MicroDexed.ino
+++ b/MicroDexed.ino
@@ -334,7 +334,7 @@ void loop()
   const uint16_t audio_block_time_us = 1000000 / (SAMPLE_RATE / AUDIO_BLOCK_SAMPLES);
 
   // Main sound calculation
-  if (queue1.available() && fill_audio_buffer > audio_block_time_us-10)
+  if (queue1.available() && fill_audio_buffer > audio_block_time_us - 10)
   {
     fill_audio_buffer = 0;
 
@@ -644,6 +644,7 @@ bool queue_midi_event(uint8_t type, uint8_t data1, uint8_t data2)
             mixer2.gain(1, mapfloat(effect_delay_volume, 0, 99, 0.0, 1.0)); // delay tap1 signal (with added feedback)
             break;
           default:
+            ret = dexed->processMidiMessage(type, data1, data2);
             break;
         }
       }
diff --git a/UI.cpp b/UI.cpp
index 71fa6f6..b25e4eb 100644
--- a/UI.cpp
+++ b/UI.cpp
@@ -74,6 +74,7 @@ void handle_ui(void)
 #ifdef DEBUG
         Serial.print(F("Long button pressing detected for button "));
         Serial.println(i, DEC);
+#endif
 
         switch (i)
         {
@@ -103,7 +104,6 @@ void handle_ui(void)
             }
             break;
         }
-#endif
       }
       else
       {
diff --git a/config.h b/config.h
index 02650d2..a0328f9 100644
--- a/config.h
+++ b/config.h
@@ -35,7 +35,7 @@
 #define VERSION 1.0.0
 #define MIDI_DEVICE Serial1
 #define USE_ONBOARD_USB_HOST 1
-#define MIDI_MERGE_THRU 1
+//#define MIDI_MERGE_THRU 1
 #define TEENSY_AUDIO_BOARD 1
 #define VOLUME 0.6
 #define DEFAULT_MIDI_CHANNEL MIDI_CHANNEL_OMNI
@@ -70,7 +70,7 @@
 
 // Debug output
 #define SERIAL_SPEED 38400
-#define DEBUG 1
+//#define DEBUG 1
 #define SHOW_MIDI_EVENT 1
 #define SHOW_XRUN 1
 #define SHOW_CPU_LOAD_MSEC 5000