diff --git a/pyxrf/core/map_processing.py b/pyxrf/core/map_processing.py
index 5401b599..0b42031e 100644
--- a/pyxrf/core/map_processing.py
+++ b/pyxrf/core/map_processing.py
@@ -1143,6 +1143,7 @@ def compute_selected_rois(
 # is interest. The output of this function is tested to match the
 # output of 'snip_method' to make sure the functions are equivalent.
 
+
 _default_con_val_no_bin = 3
 _default_con_val_bin = 5
 _default_iter_num_no_bin = 3
@@ -1225,6 +1226,7 @@ def snip_method_numba(
            geoscience applications", Nuclear Instruments and Methods in
            Physics Research Section B, vol. 34, 1998.
     """
+
     # clean input a bit
     if con_val is None:
         if spectral_binning is None:
@@ -1319,7 +1321,12 @@ def _clip(arr, vmin, vmax):
         temp = (background[lo_index.astype(np.int32)] + background[hi_index.astype(np.int32)]) / 2.0
 
         bg_index = background > temp
-        background[bg_index] = temp[bg_index]
+        # The following numpy based line of code stopped working with numba v0.61.0
+        # background[bg_index] = temp[bg_index]
+        # The following code is the workaround. Seems fast enough.
+        for n in range(len(background)):
+            if bg_index[n]:
+                background[n] = temp[n]
 
     current_width = window_p
     max_current_width = np.amax(current_width)
@@ -1331,7 +1338,12 @@ def _clip(arr, vmin, vmax):
         temp = (background[lo_index.astype(np.int32)] + background[hi_index.astype(np.int32)]) / 2.0
 
         bg_index = background > temp
-        background[bg_index] = temp[bg_index]
+        # The following numpy based line of code stopped working with numba v0.61.0
+        # background[bg_index] = temp[bg_index]
+        # The following code is the workaround. Seems fast enough.
+        for n in range(len(background)):
+            if bg_index[n]:
+                background[n] = temp[n]
 
         # decrease the width and repeat
         current_width = current_width / decrease_factor
diff --git a/pyxrf/model/lineplot.py b/pyxrf/model/lineplot.py
index 96319839..501b70b7 100644
--- a/pyxrf/model/lineplot.py
+++ b/pyxrf/model/lineplot.py
@@ -1499,9 +1499,11 @@ def _show_preview_spectrum_plot(self):
         # Completely redraw the plot each time the function is called
         self.prepare_preview_spectrum_plot()
 
-        # Remove all lines from the plot
-        while len(self._lines_preview):
-            self._lines_preview.pop().remove()
+        # Remove all lines from the plot. This is not really needed, since the axes are cleared.
+        # while len(self._lines_preview):
+        #     _ = self._lines_preview.pop()
+        #     if _.axes is not None:
+        #         _.remove()
 
         # The list of color names
         color_names = get_color_name()