diff --git a/backend/app/worker/processes.py b/backend/app/worker/processes.py
index 4155cdc..a5ab453 100644
--- a/backend/app/worker/processes.py
+++ b/backend/app/worker/processes.py
@@ -12,14 +12,17 @@
 i3dm_db = f"Host={settings.POSTGRES_SERVER};Username={settings.POSTGRES_USER};password={settings.POSTGRES_PASSWORD};Port={settings.POSTGRES_PORT};Database={settings.POSTGRES_TASKS_DB}"
 
 def earcut_js(coordinates):
-    coordinates_str = json.dumps(coordinates)
-    result = subprocess.run([
-        'node',
-        '/app/node/earcut.js',
-        coordinates_str
-    ], stdout=subprocess.PIPE)
-    output = list(map(int, result.stdout.decode("utf-8").split(',')))
-    return output
+    try:
+        coordinates_str = json.dumps(coordinates)
+        result = subprocess.run([
+            'node',
+            '/app/node/earcut.js',
+            coordinates_str
+        ], stdout=subprocess.PIPE)
+        output = list(map(int, result.stdout.decode("utf-8").split(',')))
+        return output
+    except Exception:
+        return []
 
 def identify_projection(projection):
     try:
@@ -134,8 +137,8 @@ def pg2b3dm(table_task_name, output_3dtiles_path, attributes, min_geometric_erro
             '--use_implicit_tiling', "false",
             '--max_features_per_tile', f"{int(max_features_per_tile)}"
         ],
-        capture_output = True,
-        text = True
+        # capture_output = True,
+        # text = True
     )
 
     try:
diff --git a/backend/app/worker/tasks.py b/backend/app/worker/tasks.py
index 795739c..327bdc3 100644
--- a/backend/app/worker/tasks.py
+++ b/backend/app/worker/tasks.py
@@ -163,7 +163,6 @@ def setup_output_directory(pipeline_id):
 def create_point_instance_3dtiles(pipeline_extended):
 
     asset = pipeline_extended['asset']
-    asset_upload_path = get_asset_upload_path(asset['id'], asset['extension'])
     asset_id = asset['id']
     pipeline_id = pipeline_extended['id']
     table_name = get_asset_table_name(asset_id)
@@ -188,8 +187,6 @@ def create_point_instance_3dtiles(pipeline_extended):
         **pipeline_config
     }
 
-    import_vector_to_postgres(asset_upload_path, table_name, geometry_column_name, fid_column_name)
-
     table = Table(table_name, MetaData(), autoload_with=engine_tasks)
 
     table_task_name = get_pipeline_table_name(pipeline_id)
@@ -303,7 +300,6 @@ def create_point_instance_3dtiles(pipeline_extended):
 def create_mesh_3dtiles(pipeline_extended):
 
     asset = pipeline_extended['asset']
-    asset_upload_path = get_asset_upload_path(asset['id'], asset['extension'])
     asset_id = asset['id']
     pipeline_id = pipeline_extended['id']
     table_name = get_asset_table_name(asset_id)
@@ -330,8 +326,6 @@ def create_mesh_3dtiles(pipeline_extended):
         **pipeline_config
     }
 
-    import_vector_to_postgres(asset_upload_path, table_name, geometry_column_name, fid_column_name)
-
     table = Table(table_name, MetaData(), autoload_with=engine_tasks)
 
     table_task_name = get_pipeline_table_name(pipeline_id)
@@ -393,9 +387,11 @@ def create_mesh_3dtiles(pipeline_extended):
                 }
 
                 polyhedron_wkt = polyhedral_to_wkt(geometry_to_polyhedral_surface(geometry, geometry_options))
-
-                feature_properties[geometry_column_name] = polyhedron_wkt
-                session.exec(insert(table_tasks).values(feature_properties))
+                if polyhedron_wkt != 'POLYHEDRALSURFACE Z()':
+                    feature_properties[geometry_column_name] = polyhedron_wkt
+                    session.exec(insert(table_tasks).values(feature_properties))
+                else:
+                    print(f'Error creating polyhedron:', feature)
 
         session.commit()
 
diff --git a/backend/scripts/celery-reload.sh b/backend/scripts/celery-reload.sh
old mode 100644
new mode 100755
diff --git a/backend/scripts/celery.sh b/backend/scripts/celery.sh
old mode 100644
new mode 100755