diff --git a/invesalius/control.py b/invesalius/control.py
index 674c08d..a7cbf5c 100755
--- a/invesalius/control.py
+++ b/invesalius/control.py
@@ -317,6 +317,8 @@ class Controller():
     def LoadProject(self):
         proj = prj.Project()
 
+        mask_index = len(proj.mask_dict) -1
+
         const.THRESHOLD_OUTVALUE = proj.threshold_range[0]
         const.THRESHOLD_INVALUE = proj.threshold_range[1]
         const.WINDOW_LEVEL[_('Default')] = (proj.window, proj.level)
@@ -337,6 +339,7 @@ class Controller():
         ps.Publisher().sendMessage('Show content panel')
         ps.Publisher().sendMessage('Update AUI')
         ps.Publisher().sendMessage('Load slice plane')
+        ps.Publisher().sendMessage('Change mask selected', mask_index)
         ps.Publisher().sendMessage('End busy cursor')
 
     def CreateAnalyzeProject(self, imagedata):
diff --git a/invesalius/data/slice_.py b/invesalius/data/slice_.py
index 72c26e6..7921f50 100644
--- a/invesalius/data/slice_.py
+++ b/invesalius/data/slice_.py
@@ -335,16 +335,15 @@ class Slice(object):
     #---------------------------------------------------------------------------
     def SelectCurrentMask(self, index):
         "Insert mask data, based on given index, into pipeline."
-
         # This condition is not necessary in Linux, only under mac and windows
         # because combobox event is binded when the same item is selected again.
         #if index != self.current_mask.index:
         if self.current_mask and self.blend_filter:
             proj = Project()
             future_mask = proj.GetMask(index)
-
+            future_mask.is_shown = True
             self.current_mask = future_mask
-
+            
             colour = future_mask.colour
             index = future_mask.index
             self.SetMaskColour(index, colour, update=False)
@@ -353,9 +352,10 @@ class Slice(object):
             self.img_colours_mask.SetInput(imagedata)
 
             if self.current_mask.is_shown:
+                print 1
                 self.blend_filter.SetOpacity(1, self.current_mask.opacity)
             else:
-
+                print 2
                 self.blend_filter.SetOpacity(1, 0)
             self.blend_filter.Update()
 
--
libgit2 0.21.2