diff --git a/src/ifcblenderexport/Makefile b/src/ifcblenderexport/Makefile
index 197ddb8e4d..151a8f7bf0 100644
--- a/src/ifcblenderexport/Makefile
+++ b/src/ifcblenderexport/Makefile
@@ -26,7 +26,7 @@ endif
 	cp -r blenderbim/* dist/blenderbim/
 
 	# Provides IfcOpenShell Python functionality
-	cd dist/working && wget https://s3.amazonaws.com/ifcopenshell-builds/ifcblender-python-37-v0.6.0-ca6adff-$(PLATFORM)64.zip
+	cd dist/working && wget https://s3.amazonaws.com/ifcopenshell-builds/ifcblender-python-37-v0.6.0-b08346c-$(PLATFORM)64.zip
 	cd dist/working && unzip ifcblender*
 	cp -r dist/working/io_import_scene_ifc/ifcopenshell dist/blenderbim/libs/site/packages/
 	# See bug #812
diff --git a/src/ifcblenderexport/blenderbim/bim/import_ifc.py b/src/ifcblenderexport/blenderbim/bim/import_ifc.py
index 1871d6b945..8c83454319 100644
--- a/src/ifcblenderexport/blenderbim/bim/import_ifc.py
+++ b/src/ifcblenderexport/blenderbim/bim/import_ifc.py
@@ -228,11 +228,14 @@ class MaterialCreator:
             if profile.Material.Name not in self.materials:
                 self.create_new_single(profile.Material)
             new.material = self.materials[profile.Material.Name]
-            new.profile = profile.Profile.is_a()
-            for i, attribute in enumerate(profile.Profile):
-                newa = new.profile_attributes.add()
-                newa.name = profile.Profile.attribute_name(i)
-                newa.string_value = str(attribute)
+            try:
+                new.profile = profile.Profile.is_a()
+                for i, attribute in enumerate(profile.Profile):
+                    newa = new.profile_attributes.add()
+                    newa.name = profile.Profile.attribute_name(i)
+                    newa.string_value = str(attribute)
+            except:
+                pass # TODO: currently, only parametric profile sets are supported
             new.priority = profile.Priority or 0
             new.category = profile.Category or ""
 
@@ -1352,6 +1355,8 @@ class IfcImporter:
                 for obj in bpy.context.selectable_objects:
                     global_id = obj.BIMObjectProperties.attributes.get("GlobalId")
                     if global_id and global_id.string_value in guids:
+                        if not obj.data or not hasattr(obj.data, "BIMMeshProperties"):
+                            continue
                         obj.data.BIMMeshProperties.presentation_layer_index = layer_index
                         obj.hide_set(not layer.layer_on)
 
diff --git a/src/ifcblenderexport/blenderbim/bim/prop.py b/src/ifcblenderexport/blenderbim/bim/prop.py
index 00633a009a..019cba8f17 100644
--- a/src/ifcblenderexport/blenderbim/bim/prop.py
+++ b/src/ifcblenderexport/blenderbim/bim/prop.py
@@ -479,6 +479,8 @@ def getApplicableMaterialAttributes(self, context):
 
 
 def refreshProfileAttributes(self, context):
+    if not context.active_object:
+        return
     props = context.active_object.BIMObjectProperties
     profile = props.material_set.material_profiles[props.material_set.active_material_profile_index]
     while len(profile.profile_attributes) > 0: