Better logging and handling of failed model file loading

project/code/TMV/Model.cs

@@ -25,7 +25,8 @@ public partial class Model : Node3D
         var modelFile = new ModelFile(modelPath);
         if (modelFile == null)
         {
-            GD.Print("UH OH");
+            GD.Print($"Failed to load model file: {modelPath}");
+            return;
         }
 
         // TODO: Remove this disgusting hack