diff --git a/View/acoustic_data_tab.py b/View/acoustic_data_tab.py
index fa33cd6..4fb8a23 100644
--- a/View/acoustic_data_tab.py
+++ b/View/acoustic_data_tab.py
@@ -1518,27 +1518,14 @@ class AcousticDataTab(QWidget):
                 self.slider.setMaximum(10)
 
     def clear_files_from_ListWidget(self):
+        self.fileListWidget.blockSignals(True)
 
-        list_to_clear = [
-            "stg.acoustic_data", "stg.date", "stg.hour",
-            "stg.freq", "stg.freq_text",
-            "stg.nb_profiles", "stg.nb_profiles_per_sec",
-            "stg.nb_cells", "stg.cell_size",
-            "stg.pulse_length", "stg.nb_pings_per_sec",
-            "stg.nb_pings_averaged_per_profile",
-            "stg.kt_read", "stg.kt_corrected", "stg.gain_rx", "stg.gain_tx",
-            "stg.filename_BS_raw_data", "stg.path_BS_raw_data",
-            "stg.BS_raw_data", "stg.time", "stg.depth",
-            "stg.BS_raw_data_reshape", "stg.time_reshape", "stg.depth_reshape",
-            "stg.rmin", "stg.rmax", "stg.tmin", "stg.tmax",
-            "stg.time_cross_section", "stg.depth_cross_section",
-            "stg.BS_cross_section", "stg.BS_stream_bed"
-        ]
+        self.clear_files_data()
+        self.clear_files_from_ListWidget_reset()
 
-        for k in list_to_clear:
-            if isinstance(eval(k), list):
-                exec(k + ".clear()")
+        self.fileListWidget.blockSignals(False)
 
+    def clear_files_from_ListWidget_reset(self):
         self.fileListWidget.clear()
         # self.fileListWidget.takeItem(0)
 
@@ -1615,6 +1602,27 @@ class AcousticDataTab(QWidget):
             self.slider.setValue(0)
             self.slider.setMaximum(10)
 
+    def clear_files_data(self):
+        list_to_clear = [
+            stg.acoustic_data, stg.date, stg.hour,
+            stg.freq, stg.freq_text,
+            stg.nb_profiles, stg.nb_profiles_per_sec,
+            stg.nb_cells, stg.cell_size,
+            stg.pulse_length, stg.nb_pings_per_sec,
+            stg.nb_pings_averaged_per_profile,
+            stg.kt_read, stg.kt_corrected, stg.gain_rx, stg.gain_tx,
+            stg.filename_BS_raw_data, stg.path_BS_raw_data,
+            stg.BS_raw_data, stg.time, stg.depth,
+            stg.BS_raw_data_reshape, stg.time_reshape, stg.depth_reshape,
+            stg.rmin, stg.rmax, stg.tmin, stg.tmax,
+            stg.time_cross_section, stg.depth_cross_section,
+            stg.BS_cross_section, stg.BS_stream_bed
+        ]
+
+        for k in list_to_clear:
+            if isinstance(k, list):
+                k.clear()
+
     def load_BS_acoustic_raw_data(self):
         if self.fileListWidget.count() == 0:
             for p, f in zip(stg.path_BS_raw_data,
@@ -2001,7 +2009,7 @@ class AcousticDataTab(QWidget):
             14, 1, 1, 1, Qt.AlignLeft
         )
 
-        if self.checkbox_kt.isChecked():
+        if self.checkbox_kt.isChecked() and len(stg.kt_corrected) > freq_id:
             if self.combobox_frequency_information.count() > 0:
                 self.lineEdit_kt.setText(
                     str("%.4f" % stg.kt_corrected[freq_id])