diff --git a/src/slic3r/GUI/3DScene.cpp b/src/slic3r/GUI/3DScene.cpp
index 2babc516a..992ed7353 100644
--- a/src/slic3r/GUI/3DScene.cpp
+++ b/src/slic3r/GUI/3DScene.cpp
@@ -843,12 +843,13 @@ void GLVolumeCollection::render(GLVolumeCollection::ERenderType type, bool disab
         volume.first->set_render_color();
 
         // render sinking contours of non-hovered volumes
-        if (volume.first->is_sinking() && !volume.first->is_below_printbed() &&
-            volume.first->hover == GLVolume::HS_None && !volume.first->force_sinking_contours) {
-            shader->stop_using();
-            volume.first->render_sinking_contours();
-            shader->start_using();
-        }
+        if (m_show_sinking_contours)
+            if (volume.first->is_sinking() && !volume.first->is_below_printbed() &&
+                volume.first->hover == GLVolume::HS_None && !volume.first->force_sinking_contours) {
+                shader->stop_using();
+                volume.first->render_sinking_contours();
+                shader->start_using();
+            }
 
         glsafe(::glEnableClientState(GL_VERTEX_ARRAY));
         glsafe(::glEnableClientState(GL_NORMAL_ARRAY));
@@ -887,17 +888,18 @@ void GLVolumeCollection::render(GLVolumeCollection::ERenderType type, bool disab
         glsafe(::glDisableClientState(GL_NORMAL_ARRAY));
     }
 
-    for (GLVolumeWithIdAndZ& volume : to_render) {
-        // render sinking contours of hovered/displaced volumes
-        if (volume.first->is_sinking() && !volume.first->is_below_printbed() &&
-            (volume.first->hover != GLVolume::HS_None || volume.first->force_sinking_contours)) {
-            shader->stop_using();
-            glsafe(::glDepthFunc(GL_ALWAYS));
-            volume.first->render_sinking_contours();
-            glsafe(::glDepthFunc(GL_LESS));
-            shader->start_using();
+    if (m_show_sinking_contours)
+        for (GLVolumeWithIdAndZ& volume : to_render) {
+            // render sinking contours of hovered/displaced volumes
+            if (volume.first->is_sinking() && !volume.first->is_below_printbed() &&
+                (volume.first->hover != GLVolume::HS_None || volume.first->force_sinking_contours)) {
+                shader->stop_using();
+                glsafe(::glDepthFunc(GL_ALWAYS));
+                volume.first->render_sinking_contours();
+                glsafe(::glDepthFunc(GL_LESS));
+                shader->start_using();
+            }
         }
-    }
 #else
     glsafe(::glEnableClientState(GL_VERTEX_ARRAY));
     glsafe(::glEnableClientState(GL_NORMAL_ARRAY));
diff --git a/src/slic3r/GUI/3DScene.hpp b/src/slic3r/GUI/3DScene.hpp
index a257db56a..e5298ca93 100644
--- a/src/slic3r/GUI/3DScene.hpp
+++ b/src/slic3r/GUI/3DScene.hpp
@@ -539,6 +539,7 @@ private:
     };
 
     Slope m_slope;
+    bool m_show_sinking_contours = false;
 
 public:
     GLVolumePtrs volumes;
@@ -608,6 +609,7 @@ public:
     float get_slope_normal_z() const { return m_slope.normal_z; }
     void set_slope_normal_z(float normal_z) { m_slope.normal_z = normal_z; }
     void set_default_slope_normal_z() { m_slope.normal_z = -::cos(Geometry::deg2rad(90.0f - 45.0f)); }
+    void set_show_sinking_contours(bool show) { m_show_sinking_contours = show; }
 
     // returns true if all the volumes are completely contained in the print volume
     // returns the containment state in the given out_state, if non-null
diff --git a/src/slic3r/GUI/GLCanvas3D.cpp b/src/slic3r/GUI/GLCanvas3D.cpp
index f366100ac..93271d796 100644
--- a/src/slic3r/GUI/GLCanvas3D.cpp
+++ b/src/slic3r/GUI/GLCanvas3D.cpp
@@ -5107,6 +5107,7 @@ void GLCanvas3D::_render_objects()
         m_volumes.set_z_range(-FLT_MAX, FLT_MAX);
 
     m_volumes.set_clipping_plane(m_camera_clipping_plane.get_data());
+    m_volumes.set_show_sinking_contours(! m_gizmos.is_hiding_instances());
 
     GLShaderProgram* shader = wxGetApp().get_shader("gouraud");
     if (shader != nullptr) {
diff --git a/src/slic3r/GUI/Gizmos/GLGizmosManager.cpp b/src/slic3r/GUI/Gizmos/GLGizmosManager.cpp
index 7461b0922..fc789c3d2 100644
--- a/src/slic3r/GUI/Gizmos/GLGizmosManager.cpp
+++ b/src/slic3r/GUI/Gizmos/GLGizmosManager.cpp
@@ -1248,6 +1248,12 @@ bool GLGizmosManager::is_in_editing_mode(bool error_notification) const
 }
 
 
+bool GLGizmosManager::is_hiding_instances() const
+{
+    return (m_common_gizmos_data->instances_hider() && m_common_gizmos_data->instances_hider()->is_valid());
+}
+
+
 int GLGizmosManager::get_shortcut_key(GLGizmosManager::EType type) const
 {
     return m_gizmos[type]->get_shortcut_key();
diff --git a/src/slic3r/GUI/Gizmos/GLGizmosManager.hpp b/src/slic3r/GUI/Gizmos/GLGizmosManager.hpp
index cdfb3f6ff..188c9e914 100644
--- a/src/slic3r/GUI/Gizmos/GLGizmosManager.hpp
+++ b/src/slic3r/GUI/Gizmos/GLGizmosManager.hpp
@@ -122,7 +122,6 @@ private:
     MouseCapture m_mouse_capture;
     std::string m_tooltip;
     bool m_serializing;
-    //std::unique_ptr<CommonGizmosData> m_common_gizmos_data;
     std::unique_ptr<CommonGizmosDataPool> m_common_gizmos_data;
 
 public:
@@ -218,6 +217,7 @@ public:
     bool wants_reslice_supports_on_undo() const;
 
     bool is_in_editing_mode(bool error_notification = false) const;
+    bool is_hiding_instances() const;
 
     void render_current_gizmo() const;
     void render_current_gizmo_for_picking_pass() const;