diff --git a/src/syngen/ml/metrics/metrics_classes/metrics.py b/src/syngen/ml/metrics/metrics_classes/metrics.py
index bf433939..fdc70152 100644
--- a/src/syngen/ml/metrics/metrics_classes/metrics.py
+++ b/src/syngen/ml/metrics/metrics_classes/metrics.py
@@ -485,7 +485,7 @@ def get_common_min_max(original, synthetic):
 
     @staticmethod
     def __format_float_tick_labels(labels: List, nan_label: str = "nan") -> List:
-        labels = [nan_label if pd.isna(l) else l for l in labels]
+        labels = [nan_label if pd.isna(label) else label for label in labels]
         if all([isinstance(i, float) for i in labels]) and (
             max(labels) > 1e5 or min(labels) < 1e-03
         ):
@@ -507,8 +507,6 @@ def _plot_heatmap(
         ax = self._axes.flat[plt_index]
         ax.tick_params(labelsize=14)
         heatmap, x_tick_labels, y_tick_labels = heatmap_data
-        print(f"!!!!!!!!!!!!!!!!!!!!!")
-        print(f"{self.missing_values}")
         x_tick_labels = self.__format_float_tick_labels(
             x_tick_labels,
             self.missing_values.get(xfeature, "nan")
diff --git a/src/syngen/ml/reporters/reporters.py b/src/syngen/ml/reporters/reporters.py
index 22f4a3f6..ce202d7b 100644
--- a/src/syngen/ml/reporters/reporters.py
+++ b/src/syngen/ml/reporters/reporters.py
@@ -64,6 +64,7 @@ def _extract_report_data(self) -> Tuple[pd.DataFrame, pd.DataFrame]:
 
     def fetch_data_types(self):
         self.dataset = fetch_config(self.paths["dataset_pickle_path"])
+        self.columns_nan_labels = self.dataset.nan_labels_dict
         types = (
             self.dataset.str_columns,
             self.dataset.date_columns,