diff --git a/addons/material_maker/engine/gen_shader.gd b/addons/material_maker/engine/gen_shader.gd
index dc2ac4f..a80d467 100644
--- a/addons/material_maker/engine/gen_shader.gd
+++ b/addons/material_maker/engine/gen_shader.gd
@@ -126,7 +126,7 @@ func replace_input(string : String, context, input : String, type : String, src
 			if src_code.has(type):
 				src_code.string = src_code[type]
 			else:
-				src_code.string = "*error*"
+				src_code.string = "*error missing "+type+"*\n"+JSON.print(src_code)
 		# Add global definitions
 		if src_code.has("globals"):
 			for d in src_code.globals:
diff --git a/project.godot b/project.godot
index ba5f88f..6763583 100644
--- a/project.godot
+++ b/project.godot
@@ -221,6 +221,10 @@ toggle_fullscreen={
 
 file_logging/log_path=""
 
+[memory]
+
+limits/message_queue/max_size_kb=16384
+
 [rendering]
 
 environment/default_environment="res://default_env.tres"