diff --git a/src/expipe_plugin_cinpla/nwbutils/nwbwidgetsunitviewer.py b/src/expipe_plugin_cinpla/nwbutils/nwbwidgetsunitviewer.py
index 845dc62..d92bfb9 100644
--- a/src/expipe_plugin_cinpla/nwbutils/nwbwidgetsunitviewer.py
+++ b/src/expipe_plugin_cinpla/nwbutils/nwbwidgetsunitviewer.py
@@ -115,7 +115,7 @@ def __init__(
         if spatial_series is None:
             self.spatial_series = self.get_spatial_series()
             if len(self.spatial_series) == 0:
-                self.children = [widgets.HTML("No trials present")]
+                self.children = [widgets.HTML("No sparial series present")]
                 return
             elif len(self.spatial_series) > 1:
                 self.spatial_series_selector = widgets.Dropdown(
diff --git a/src/expipe_plugin_cinpla/scripts/curation.py b/src/expipe_plugin_cinpla/scripts/curation.py
index 39c239b..3a694c5 100644
--- a/src/expipe_plugin_cinpla/scripts/curation.py
+++ b/src/expipe_plugin_cinpla/scripts/curation.py
@@ -4,6 +4,7 @@
 import numpy as np
 from pynwb import NWBHDF5IO
 from pynwb.testing.mock.file import mock_NWBFile
+import warnings
 
 import spikeinterface.full as si
 import spikeinterface.extractors as se
@@ -15,6 +16,7 @@
 
 from .utils import _get_data_path, add_units_from_waveform_extractor, compute_and_set_unit_groups
 
+warnings.filterwarnings("ignore", category=ResourceWarning)
 
 metric_metric_str_to_si_metric_name = {
     "amplitude_cutoff": "amplitude_cutoff",
@@ -100,16 +102,17 @@ def load_main_units(self):
         return nwbfile.units
 
     def construct_curated_units(self):
-        nwbfile_mock = mock_NWBFile()
+        self.io = NWBHDF5IO(self.nwb_path_main, "r")
+        nwbfile = self.io.read()
         add_units_from_waveform_extractor(
             self.curated_we,
-            nwbfile_mock,
-            unit_table_name="units",
+            nwbfile,
+            unit_table_name="curated units",
             unit_table_description=self.curation_description,
-            write_in_processing_module=False,
+            write_in_processing_module=True,
             write_electrodes_column=False,
         )
-        return nwbfile_mock.units
+        return nwbfile.units
 
     def load_processed_recording(self, sorter):
         preprocessed_json = self.si_path / sorter / "preprocessed.json"
@@ -184,7 +187,7 @@ def get_phy_run_command(self, sorter):
     def get_sortingview_link(self, sorter):
         visualization_json = self.si_path / sorter / "sortingview_links.json"
         if not visualization_json.is_file():
-            return ""
+            return "Sorting view link not found."
         with open(visualization_json, "r") as f:
             sortingview_links = json.load(f)
         return sortingview_links["raw"]
diff --git a/src/expipe_plugin_cinpla/widgets/curation.py b/src/expipe_plugin_cinpla/widgets/curation.py
index 69fd3a5..1e63576 100644
--- a/src/expipe_plugin_cinpla/widgets/curation.py
+++ b/src/expipe_plugin_cinpla/widgets/curation.py
@@ -205,6 +205,8 @@ def on_action(change):
                     sv_visualization_link.value = self.sorting_curator.get_sortingview_link(sorter_list.value[0])
                 elif strategy.value == "Phy":
                     run_phy_command.value = self.sorting_curator.get_phy_run_command(sorter_list.value[0])
+                units_dropdown.value = "Raw"
+                on_choose_units(None)
 
         def on_sorter(change):
             required_values_filled(actions_list)
@@ -216,20 +218,17 @@ def on_sorter(change):
                     if units_raw is not None:
                         w = nwb2widget(units_raw, custom_raw_unit_vis)
                         units_viewers["raw"] = w
-                    else:
-                        units_viewers["raw"] = sorting_not_found
                     units_main = self.sorting_curator.load_main_units()
                     if units_main is not None:
                         w = nwb2widget(units_main, custom_main_unit_vis)
                         units_viewers["main"] = w
-                    else:
-                        units_viewers["main"] = sorting_not_found
-                    units_viewers["curated"] = sorting_not_found
                     if strategy.value == "Sortingview":
                         # load visualization link
                         sv_visualization_link.value = self.sorting_curator.get_sortingview_link(sorter_list.value[0])
                     elif strategy.value == "Phy":
                         run_phy_command.value = self.sorting_curator.get_phy_run_command(sorter_list.value[0])
+                    units_dropdown.value = "Raw"
+                    on_choose_units(None)
 
         def on_change_strategy(change):
             if change["new"] == "Phy":
@@ -275,6 +274,8 @@ def on_choose_units(change):
             units_widget = units_viewers[units_dropdown.value.lower()]
             if units_widget is not None:
                 units_col.children = [units_dropdown, units_widget]
+            else:
+                units_col.children = [units_dropdown, sorting_not_found]
 
         @self.output.capture()
         def on_set_default_qms(change):