diff --git a/invesalius/data/viewer_volume.py b/invesalius/data/viewer_volume.py
index 1ed1b31..fa50150 100644
--- a/invesalius/data/viewer_volume.py
+++ b/invesalius/data/viewer_volume.py
@@ -184,6 +184,7 @@ class Viewer(wx.Panel):
         self.aim_actor = None
         self.dummy_coil_actor = None
         self.target_mode = False
+        self.polydata = None
         self.anglethreshold = const.COIL_ANGLES_THRESHOLD
         self.distthreshold = const.COIL_COORD_THRESHOLD
 
@@ -916,7 +917,10 @@ class Viewer(wx.Panel):
         self.aim_actor = aim_actor
         self.ren.AddActor(aim_actor)
 
-        obj_polydata = self.CreateObjectPolyData(os.path.join(inv_paths.OBJ_DIR, "magstim_fig8_coil_no_handle.stl"))
+        if self.polydata:
+            obj_polydata = self.polydata
+        else:
+            obj_polydata = self.CreateObjectPolyData(os.path.join(inv_paths.OBJ_DIR, "magstim_fig8_coil_no_handle.stl"))
 
         transform = vtk.vtkTransform()
         transform.RotateZ(90)
@@ -1254,9 +1258,10 @@ class Viewer(wx.Panel):
 
         self.Refresh()
 
-    def UpdateTrackObjectState(self, evt=None, flag=None, obj_name=None):
+    def UpdateTrackObjectState(self, evt=None, flag=None, obj_name=None, polydata=None):
         if flag:
             self.obj_name = obj_name
+            self.polydata = polydata
             if not self.obj_actor:
                 self.AddObjectActor(self.obj_name)
         else:
diff --git a/invesalius/gui/dialogs.py b/invesalius/gui/dialogs.py
index 3063f67..c253c01 100644
--- a/invesalius/gui/dialogs.py
+++ b/invesalius/gui/dialogs.py
@@ -3328,6 +3328,7 @@ class ObjectCalibrationDialog(wx.Dialog):
         self.trk_init = nav_prop[1]
         self.obj_ref_id = 2
         self.obj_name = None
+        self.polydata = None
 
         self.obj_fiducials = np.full([5, 3], np.nan)
         self.obj_orients = np.full([5, 3], np.nan)
@@ -3471,6 +3472,7 @@ class ObjectCalibrationDialog(wx.Dialog):
         reader.SetFileName(self.obj_name)
         reader.Update()
         polydata = reader.GetOutput()
+        self.polydata = polydata
 
         if polydata.GetNumberOfPoints() == 0:
             wx.MessageBox(_("InVesalius was not able to import this surface"), _("Import surface error"))
@@ -3588,7 +3590,7 @@ class ObjectCalibrationDialog(wx.Dialog):
             self.obj_ref_id = 0
 
     def GetValue(self):
-        return self.obj_fiducials, self.obj_orients, self.obj_ref_id, self.obj_name
+        return self.obj_fiducials, self.obj_orients, self.obj_ref_id, self.obj_name, self.polydata
 
 
 class SurfaceProgressWindow(object):
diff --git a/invesalius/gui/task_navigator.py b/invesalius/gui/task_navigator.py
index 0a0d3c1..b7b57ef 100644
--- a/invesalius/gui/task_navigator.py
+++ b/invesalius/gui/task_navigator.py
@@ -251,7 +251,7 @@ class InnerFoldPanel(wx.Panel):
     def OnExternalTrigger(self, evt, ctrl):
         Publisher.sendMessage('Update trigger state', trigger_state=ctrl.GetValue())
 
-    def OnShowObject(self, evt=None, flag=None, obj_name=None):
+    def OnShowObject(self, evt=None, flag=None, obj_name=None, polydata=None):
         if not evt:
             if flag:
                 self.checkobj.Enable(True)
@@ -436,7 +436,7 @@ class NeuronavigationPanel(wx.Panel):
             self.obj_reg = None
             self.obj_reg_status = False
 
-    def UpdateTrackObjectState(self, evt=None, flag=None, obj_name=None):
+    def UpdateTrackObjectState(self, evt=None, flag=None, obj_name=None, polydata=None):
         self.track_obj = flag
 
     def UpdateTriggerState(self, trigger_state):
@@ -882,7 +882,7 @@ class ObjectRegistrationPanel(wx.Panel):
             dialog = dlg.ObjectCalibrationDialog(self.nav_prop)
             try:
                 if dialog.ShowModal() == wx.ID_OK:
-                    self.obj_fiducials, self.obj_orients, self.obj_ref_mode, self.obj_name = dialog.GetValue()
+                    self.obj_fiducials, self.obj_orients, self.obj_ref_mode, self.obj_name, polydata = dialog.GetValue()
                     if np.isfinite(self.obj_fiducials).all() and np.isfinite(self.obj_orients).all():
                         self.checktrack.Enable(1)
                         Publisher.sendMessage('Update object registration',
@@ -891,7 +891,7 @@ class ObjectRegistrationPanel(wx.Panel):
                                               label=_("Ready"))
                         # Enable automatically Track object, Show coil and disable Vol. Camera
                         self.checktrack.SetValue(True)
-                        Publisher.sendMessage('Update track object state', flag=True, obj_name=self.obj_name)
+                        Publisher.sendMessage('Update track object state', flag=True, obj_name=self.obj_name, polydata=polydata)
                         Publisher.sendMessage('Change camera checkbox', status=False)
 
             except wx._core.PyAssertionError:  # TODO FIX: win64
--
libgit2 0.21.2