diff --git a/src/bioxelnodes/bioxelutils/container.py b/src/bioxelnodes/bioxelutils/container.py
index 147733f..59c0b1a 100644
--- a/src/bioxelnodes/bioxelutils/container.py
+++ b/src/bioxelnodes/bioxelutils/container.py
@@ -164,4 +164,23 @@ def container_to_obj(container: Container,
                                container_obj=container_obj,
                                cache_dir=cache_dir)
 
+    try:
+        layer_node = get_nodes_by_type(
+            node_group, "BioxelNodes_FetchLayer")[0]
+        center_node = add_node_to_graph("ReCenter",
+                                        node_group,
+                                        use_link=get_use_link())
+
+        output_node = get_output_node(node_group)
+
+        node_group.links.new(layer_node.outputs[0],
+                             center_node.inputs[0])
+        node_group.links.new(center_node.outputs[0],
+                             output_node.inputs[0])
+
+        move_node_to_node(center_node, layer_node, (300, 0))
+        bpy.ops.bioxelnodes.add_slicer('EXEC_DEFAULT')
+    except:
+        pass
+
     return container_obj
diff --git a/src/bioxelnodes/operators/io.py b/src/bioxelnodes/operators/io.py
index d3f4fd3..0fce9cf 100644
--- a/src/bioxelnodes/operators/io.py
+++ b/src/bioxelnodes/operators/io.py
@@ -8,9 +8,8 @@ from pathlib import Path
 
 from ..exceptions import CancelledByUser
 from ..props import BIOXELNODES_Series
-from ..bioxelutils.node import add_node_to_graph
 from ..bioxelutils.common import (get_all_layer_objs, get_container_obj,
-                                  get_layer_obj, get_nodes_by_type, get_output_node, is_incompatible, move_node_to_node)
+                                  get_layer_obj, is_incompatible)
 from ..bioxelutils.container import (Container,
                                      add_layers,
                                      container_to_obj)
@@ -18,8 +17,7 @@ from ..bioxel.layer import Layer
 from ..bioxel.parse import (DICOM_EXTS, SUPPORT_EXTS,
                             get_ext, parse_volumetric_data)
 
-from ..utils import (get_cache_dir, get_use_link,
-                     progress_update, progress_bar,
+from ..utils import (get_cache_dir, progress_update, progress_bar,
                      select_object)
 
 # 3rd-party
@@ -856,27 +854,6 @@ class ImportVolumetricDataDialog(bpy.types.Operator):
 
         # Change render setting for better result
         if is_first_import:
-            try:
-
-                node_group = container_obj.modifiers[0].node_group
-                layer_node = get_nodes_by_type(
-                    node_group, "BioxelNodes_FetchLayer")[0]
-                center_node = add_node_to_graph("ReCenter",
-                                                node_group,
-                                                use_link=get_use_link())
-
-                output_node = get_output_node(node_group)
-
-                node_group.links.new(layer_node.outputs[0],
-                                     center_node.inputs[0])
-                node_group.links.new(center_node.outputs[0],
-                                     output_node.inputs[0])
-
-                move_node_to_node(center_node, layer_node, (300, 0))
-                bpy.ops.bioxelnodes.add_slicer('EXEC_DEFAULT')
-            except:
-                self.report({"WARNING"}, "Fail to create slicer.")
-
             try:
                 bpy.ops.bioxelnodes.render_setting_preset('EXEC_DEFAULT',
                                                           preset="balance")