diff --git a/src/guacenc/display.c b/src/guacenc/display.c
index 24f62d0d..e0dec033 100644
--- a/src/guacenc/display.c
+++ b/src/guacenc/display.c
@@ -34,7 +34,7 @@ int guacenc_display_sync(guacenc_display* display, guac_timestamp timestamp) {
 
     /* Verify timestamp is not decreasing */
     if (timestamp < display->last_sync) {
-        guacenc_log(GUAC_LOG_DEBUG, "Decreasing sync timestamp");
+        guacenc_log(GUAC_LOG_WARNING, "Decreasing sync timestamp");
         return 1;
     }
 
@@ -52,7 +52,7 @@ guacenc_layer* guacenc_display_get_layer(guacenc_display* display,
 
     /* Do not lookup / allocate if index is invalid */
     if (index < 0 || index > GUACENC_DISPLAY_MAX_LAYERS) {
-        guacenc_log(GUAC_LOG_DEBUG, "Layer index out of bounds: %i", index);
+        guacenc_log(GUAC_LOG_WARNING, "Layer index out of bounds: %i", index);
         return NULL;
     }
 
@@ -63,7 +63,7 @@ guacenc_layer* guacenc_display_get_layer(guacenc_display* display,
         /* Attempt to allocate layer */
         layer = guacenc_layer_alloc();
         if (layer == NULL) {
-            guacenc_log(GUAC_LOG_DEBUG, "Layer allocation failed");
+            guacenc_log(GUAC_LOG_WARNING, "Layer allocation failed");
             return NULL;
         }
 
@@ -81,7 +81,7 @@ int guacenc_display_free_layer(guacenc_display* display,
 
     /* Do not lookup / allocate if index is invalid */
     if (index < 0 || index > GUACENC_DISPLAY_MAX_LAYERS) {
-        guacenc_log(GUAC_LOG_DEBUG, "Layer index out of bounds: %i", index);
+        guacenc_log(GUAC_LOG_WARNING, "Layer index out of bounds: %i", index);
         return 1;
     }
 
@@ -103,7 +103,7 @@ guacenc_buffer* guacenc_display_get_buffer(guacenc_display* display,
 
     /* Do not lookup / allocate if index is invalid */
     if (internal_index < 0 || internal_index > GUACENC_DISPLAY_MAX_BUFFERS) {
-        guacenc_log(GUAC_LOG_DEBUG, "Buffer index out of bounds: %i", index);
+        guacenc_log(GUAC_LOG_WARNING, "Buffer index out of bounds: %i", index);
         return NULL;
     }
 
@@ -114,7 +114,7 @@ guacenc_buffer* guacenc_display_get_buffer(guacenc_display* display,
         /* Attempt to allocate buffer */
         buffer = guacenc_buffer_alloc();
         if (buffer == NULL) {
-            guacenc_log(GUAC_LOG_DEBUG, "Buffer allocation failed");
+            guacenc_log(GUAC_LOG_WARNING, "Buffer allocation failed");
             return NULL;
         }
 
@@ -135,7 +135,7 @@ int guacenc_display_free_buffer(guacenc_display* display,
 
     /* Do not lookup / allocate if index is invalid */
     if (internal_index < 0 || internal_index > GUACENC_DISPLAY_MAX_BUFFERS) {
-        guacenc_log(GUAC_LOG_DEBUG, "Buffer index out of bounds: %i", index);
+        guacenc_log(GUAC_LOG_WARNING, "Buffer index out of bounds: %i", index);
         return 1;
     }
 
diff --git a/src/guacenc/instruction-blob.c b/src/guacenc/instruction-blob.c
index f608e036..67b4fbb2 100644
--- a/src/guacenc/instruction-blob.c
+++ b/src/guacenc/instruction-blob.c
@@ -33,7 +33,7 @@ int guacenc_handle_blob(guacenc_display* display, int argc, char** argv) {
 
     /* Verify argument count */
     if (argc < 2) {
-        guacenc_log(GUAC_LOG_DEBUG, "\"blob\" instruction incomplete");
+        guacenc_log(GUAC_LOG_WARNING, "\"blob\" instruction incomplete");
         return 1;
     }
 
diff --git a/src/guacenc/instruction-cfill.c b/src/guacenc/instruction-cfill.c
index cda8778e..139df94d 100644
--- a/src/guacenc/instruction-cfill.c
+++ b/src/guacenc/instruction-cfill.c
@@ -32,7 +32,7 @@ int guacenc_handle_cfill(guacenc_display* display, int argc, char** argv) {
  
     /* Verify argument count */
     if (argc < 6) {
-        guacenc_log(GUAC_LOG_DEBUG, "\"cfill\" instruction incomplete");
+        guacenc_log(GUAC_LOG_WARNING, "\"cfill\" instruction incomplete");
         return 1;
     }
 
diff --git a/src/guacenc/instruction-copy.c b/src/guacenc/instruction-copy.c
index 5dbfcb1d..aada48c2 100644
--- a/src/guacenc/instruction-copy.c
+++ b/src/guacenc/instruction-copy.c
@@ -32,7 +32,7 @@ int guacenc_handle_copy(guacenc_display* display, int argc, char** argv) {
 
     /* Verify argument count */
     if (argc < 9) {
-        guacenc_log(GUAC_LOG_DEBUG, "\"copy\" instruction incomplete");
+        guacenc_log(GUAC_LOG_WARNING, "\"copy\" instruction incomplete");
         return 1;
     }
 
diff --git a/src/guacenc/instruction-cursor.c b/src/guacenc/instruction-cursor.c
index bccbacb3..0cd25d75 100644
--- a/src/guacenc/instruction-cursor.c
+++ b/src/guacenc/instruction-cursor.c
@@ -32,7 +32,7 @@ int guacenc_handle_cursor(guacenc_display* display, int argc, char** argv) {
 
     /* Verify argument count */
     if (argc < 7) {
-        guacenc_log(GUAC_LOG_DEBUG, "\"cursor\" instruction incomplete");
+        guacenc_log(GUAC_LOG_WARNING, "\"cursor\" instruction incomplete");
         return 1;
     }
 
diff --git a/src/guacenc/instruction-dispose.c b/src/guacenc/instruction-dispose.c
index fef6f363..d6204905 100644
--- a/src/guacenc/instruction-dispose.c
+++ b/src/guacenc/instruction-dispose.c
@@ -32,7 +32,7 @@ int guacenc_handle_dispose(guacenc_display* display, int argc, char** argv) {
 
     /* Verify argument count */
     if (argc < 1) {
-        guacenc_log(GUAC_LOG_DEBUG, "\"dispose\" instruction incomplete");
+        guacenc_log(GUAC_LOG_WARNING, "\"dispose\" instruction incomplete");
         return 1;
     }
 
diff --git a/src/guacenc/instruction-end.c b/src/guacenc/instruction-end.c
index 3e300e8b..fbc9e284 100644
--- a/src/guacenc/instruction-end.c
+++ b/src/guacenc/instruction-end.c
@@ -32,7 +32,7 @@ int guacenc_handle_end(guacenc_display* display, int argc, char** argv) {
 
     /* Verify argument count */
     if (argc < 1) {
-        guacenc_log(GUAC_LOG_DEBUG, "\"end\" instruction incomplete");
+        guacenc_log(GUAC_LOG_WARNING, "\"end\" instruction incomplete");
         return 1;
     }
 
diff --git a/src/guacenc/instruction-img.c b/src/guacenc/instruction-img.c
index d67fc402..bbd0c33f 100644
--- a/src/guacenc/instruction-img.c
+++ b/src/guacenc/instruction-img.c
@@ -32,7 +32,7 @@ int guacenc_handle_img(guacenc_display* display, int argc, char** argv) {
 
     /* Verify argument count */
     if (argc < 6) {
-        guacenc_log(GUAC_LOG_DEBUG, "\"img\" instruction incomplete");
+        guacenc_log(GUAC_LOG_WARNING, "\"img\" instruction incomplete");
         return 1;
     }
 
diff --git a/src/guacenc/instruction-move.c b/src/guacenc/instruction-move.c
index f929ee83..6123e344 100644
--- a/src/guacenc/instruction-move.c
+++ b/src/guacenc/instruction-move.c
@@ -32,7 +32,7 @@ int guacenc_handle_move(guacenc_display* display, int argc, char** argv) {
 
     /* Verify argument count */
     if (argc < 5) {
-        guacenc_log(GUAC_LOG_DEBUG, "\"move\" instruction incomplete");
+        guacenc_log(GUAC_LOG_WARNING, "\"move\" instruction incomplete");
         return 1;
     }
 
diff --git a/src/guacenc/instruction-rect.c b/src/guacenc/instruction-rect.c
index 2e3caa00..94fea8f3 100644
--- a/src/guacenc/instruction-rect.c
+++ b/src/guacenc/instruction-rect.c
@@ -34,7 +34,7 @@ int guacenc_handle_rect(guacenc_display* display, int argc, char** argv) {
  
     /* Verify argument count */
     if (argc < 5) {
-        guacenc_log(GUAC_LOG_DEBUG, "\"rect\" instruction incomplete");
+        guacenc_log(GUAC_LOG_WARNING, "\"rect\" instruction incomplete");
         return 1;
     }
 
diff --git a/src/guacenc/instruction-shade.c b/src/guacenc/instruction-shade.c
index 414eafbc..53826231 100644
--- a/src/guacenc/instruction-shade.c
+++ b/src/guacenc/instruction-shade.c
@@ -32,7 +32,7 @@ int guacenc_handle_shade(guacenc_display* display, int argc, char** argv) {
 
     /* Verify argument count */
     if (argc < 2) {
-        guacenc_log(GUAC_LOG_DEBUG, "\"shade\" instruction incomplete");
+        guacenc_log(GUAC_LOG_WARNING, "\"shade\" instruction incomplete");
         return 1;
     }
 
diff --git a/src/guacenc/instruction-size.c b/src/guacenc/instruction-size.c
index c650c218..f173d33f 100644
--- a/src/guacenc/instruction-size.c
+++ b/src/guacenc/instruction-size.c
@@ -32,7 +32,7 @@ int guacenc_handle_size(guacenc_display* display, int argc, char** argv) {
 
     /* Verify argument count */
     if (argc < 3) {
-        guacenc_log(GUAC_LOG_DEBUG, "\"size\" instruction incomplete");
+        guacenc_log(GUAC_LOG_WARNING, "\"size\" instruction incomplete");
         return 1;
     }
 
diff --git a/src/guacenc/instruction-sync.c b/src/guacenc/instruction-sync.c
index 64255100..a2e40389 100644
--- a/src/guacenc/instruction-sync.c
+++ b/src/guacenc/instruction-sync.c
@@ -68,7 +68,7 @@ int guacenc_handle_sync(guacenc_display* display, int argc, char** argv) {
 
     /* Verify argument count */
     if (argc < 1) {
-        guacenc_log(GUAC_LOG_DEBUG, "\"sync\" instruction incomplete");
+        guacenc_log(GUAC_LOG_WARNING, "\"sync\" instruction incomplete");
         return 1;
     }
 
diff --git a/src/guacenc/instruction-transfer.c b/src/guacenc/instruction-transfer.c
index f95a2a8f..3643404f 100644
--- a/src/guacenc/instruction-transfer.c
+++ b/src/guacenc/instruction-transfer.c
@@ -32,7 +32,7 @@ int guacenc_handle_transfer(guacenc_display* display, int argc, char** argv) {
 
     /* Verify argument count */
     if (argc < 9) {
-        guacenc_log(GUAC_LOG_DEBUG, "\"transform\" instruction incomplete");
+        guacenc_log(GUAC_LOG_WARNING, "\"transform\" instruction incomplete");
         return 1;
     }