diff --git a/addons/io_sketchfab_plugin/__init__.py b/addons/io_sketchfab_plugin/__init__.py
index eb634f6..a02b1fd 100644
--- a/addons/io_sketchfab_plugin/__init__.py
+++ b/addons/io_sketchfab_plugin/__init__.py
@@ -76,7 +76,7 @@
     'author': 'Sketchfab',
     'license': 'GPL',
     'deps': '',
-    'version': (1, 3, 0),
+    'version': (1, 3, 1),
     "blender": (2, 80, 0),
     'location': 'View3D > Tools > Sketchfab',
     'warning': '',
diff --git a/addons/io_sketchfab_plugin/blender/imp/gltf2_blender_material.py b/addons/io_sketchfab_plugin/blender/imp/gltf2_blender_material.py
index 4fd4fe0..cb94889 100644
--- a/addons/io_sketchfab_plugin/blender/imp/gltf2_blender_material.py
+++ b/addons/io_sketchfab_plugin/blender/imp/gltf2_blender_material.py
@@ -45,6 +45,8 @@ def create(gltf, material_idx, vertex_color):
 
         if bpy.app.version >= (2, 80, 0):
             mat.use_backface_culling = (pymaterial.double_sided != True)
+            # Use multiple layers for transparency
+            mat.show_transparent_back = False
 
         if pymaterial.extensions is not None and 'KHR_materials_pbrSpecularGlossiness' in pymaterial.extensions.keys():
             BlenderKHR_materials_pbrSpecularGlossiness.create(gltf, pymaterial.extensions['KHR_materials_pbrSpecularGlossiness'], mat.name, vertex_color)
diff --git a/addons/io_sketchfab_plugin/pack_for_export.py b/addons/io_sketchfab_plugin/pack_for_export.py
index 027353d..140275f 100644
--- a/addons/io_sketchfab_plugin/pack_for_export.py
+++ b/addons/io_sketchfab_plugin/pack_for_export.py
@@ -71,7 +71,10 @@ def prepare_assets(export_settings):
                                     images.add(n.image)
 
             if export_settings['selection'] and ob.type == 'MESH':
-                if not Version.get_selected(ob) or not Version.get_visible(ob):
+                # Add relevant objects to the list of objects to remove
+                if not Version.get_visible(ob): # Not visible
+                    hidden.add(ob)
+                elif not Version.get_selected(ob): # Visible but not selected
                     Version.set_visible(ob, False)
                     hidden.add(ob)
 
diff --git a/khronos-gltf.patch b/khronos-gltf.patch
index 439ff2a..7f3a767 100644
--- a/khronos-gltf.patch
+++ b/khronos-gltf.patch
@@ -91,5 +91,13 @@ index 16a4242..02fd847 100644
 +
          self.log = log.logger
          self.log_handler = log.hdlr
-
  
+@@ -159,7 +163,7 @@ class glTFImporter():
+         # glTF file
+         if not self.is_glb_format:
+             self.content = None
+-            with open(self.filename, 'r') as f:
++            with open(self.filename, 'r', encoding='utf8') as f:
+                 content = f.read()
+                 try:
+                     self.data = gltf_from_dict(json.loads(content, parse_constant=glTFImporter.bad_json_value))