diff --git a/src/libslic3r/SLAPrint.cpp b/src/libslic3r/SLAPrint.cpp
index 569d22501e..f2ae09de0f 100644
--- a/src/libslic3r/SLAPrint.cpp
+++ b/src/libslic3r/SLAPrint.cpp
@@ -1182,8 +1182,8 @@ sla::DrainHoles SLAPrintObject::transformed_drainhole_points() const
 {
     assert(m_model_object != nullptr);
     auto pts = m_model_object->sla_drain_holes;
-    auto tr = trafo().cast<float>();
-    auto sc = m_model_object->instances.front()->get_scaling_factor().cast<float>();
+    const Transform3f tr = trafo().cast<float>();
+    const Vec3f sc = m_model_object->instances.front()->get_scaling_factor().cast<float>();
     for (sla::DrainHole &hl : pts) {
         hl.pos = tr * hl.pos;
         hl.normal = tr * hl.normal - tr.translation();
diff --git a/src/slic3r/GUI/Gizmos/GLGizmoBrimEars.cpp b/src/slic3r/GUI/Gizmos/GLGizmoBrimEars.cpp
index fdc2e0ab0a..c4beb5553c 100644
--- a/src/slic3r/GUI/Gizmos/GLGizmoBrimEars.cpp
+++ b/src/slic3r/GUI/Gizmos/GLGizmoBrimEars.cpp
@@ -208,8 +208,8 @@ bool GLGizmoBrimEars::unproject_on_mesh2(const Vec2d &mouse_pos, std::pair<Vec3f
     double               clp_dist        = m_c->object_clipper()->get_position();
     const ClippingPlane *clp             = m_c->object_clipper()->get_clipping_plane();
     bool                 mouse_on_object = false;
-    Vec3f                position_on_model {};
-    Vec3f                normal_on_model {};
+    Vec3f                position_on_model { Vec3f::Zero() };
+    Vec3f                normal_on_model   { Vec3f::Zero() };
     double               closest_hit_distance = std::numeric_limits<double>::max();
 
     for (auto item : m_mesh_raycaster_map) {
diff --git a/src/slic3r/GUI/ObjectDataViewModel.cpp b/src/slic3r/GUI/ObjectDataViewModel.cpp
index a7d2f711bf..4f1b40f8b1 100644
--- a/src/slic3r/GUI/ObjectDataViewModel.cpp
+++ b/src/slic3r/GUI/ObjectDataViewModel.cpp
@@ -1049,12 +1049,15 @@ wxDataViewItem ObjectDataViewModel::Delete(const wxDataViewItem &item)
         PrintIndicator last_instance_printable = last_instance_node->IsPrintable();
         node_parent->GetChildren().Remove(last_instance_node);
         delete last_instance_node;
+        // `delete` before `ItemDeleted()` is valid wxWidget pattern
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wuse-after-free"
         ItemDeleted(parent, wxDataViewItem(last_instance_node));
+#pragma GCC diagnostic pop
 
         ObjectDataViewModelNode* obj_node = node_parent->GetParent();
         obj_node->set_printable_icon(last_instance_printable);
         obj_node->GetChildren().Remove(node_parent);
-        delete node_parent;
         ret_item = wxDataViewItem(obj_node);
 
 #ifndef __WXGTK__
@@ -1062,6 +1065,7 @@ wxDataViewItem ObjectDataViewModel::Delete(const wxDataViewItem &item)
             obj_node->m_container = false;
 #endif //__WXGTK__
         ItemDeleted(ret_item, wxDataViewItem(node_parent));
+        delete node_parent;
         return ret_item;
     }
 
@@ -1073,7 +1077,6 @@ wxDataViewItem ObjectDataViewModel::Delete(const wxDataViewItem &item)
     {
         ObjectDataViewModelNode* obj_node = node_parent->GetParent();
         obj_node->GetChildren().Remove(node_parent);
-        delete node_parent;
         ret_item = wxDataViewItem(obj_node);
 
 #ifndef __WXGTK__
@@ -1081,6 +1084,7 @@ wxDataViewItem ObjectDataViewModel::Delete(const wxDataViewItem &item)
             obj_node->m_container = false;
 #endif //__WXGTK__
         ItemDeleted(ret_item, wxDataViewItem(node_parent));
+        delete node_parent;
         return ret_item;
     }
 
diff --git a/src/slic3r/GUI/Selection.cpp b/src/slic3r/GUI/Selection.cpp
index 34063c1ca9..efb8ef87e9 100644
--- a/src/slic3r/GUI/Selection.cpp
+++ b/src/slic3r/GUI/Selection.cpp
@@ -3166,7 +3166,7 @@ void Selection::paste_objects_from_clipboard()
         if (shift_all(0) != 0 || shift_all(1) != 0) {
             // BBS: if multiple objects are selected, move them as a whole after copy
             if (i == 0) empty_cell_all = wxGetApp().plater()->canvas3D()->get_nearest_empty_cell({start_point(0), start_point(1)}, {bbox.size()(0)+1,bbox.size()(1)+1});
-            auto instance_shift = src_object->instances.front()->get_offset() - src_objects[0]->instances.front()->get_offset();
+            const Vec3d instance_shift = src_object->instances.front()->get_offset() - src_objects[0]->instances.front()->get_offset();
             displacement        = {shift_all.x() + empty_cell_all.x() + instance_shift.x(), shift_all.y() + empty_cell_all.y() + instance_shift.y(), start_offset(2)};
         } else {
             // BBS: if only one object is copied, find an empty cell to put it
diff --git a/src/slic3r/GUI/Widgets/LabeledStaticBox.cpp b/src/slic3r/GUI/Widgets/LabeledStaticBox.cpp
index 93e4596aa5..2723b3f38a 100644
--- a/src/slic3r/GUI/Widgets/LabeledStaticBox.cpp
+++ b/src/slic3r/GUI/Widgets/LabeledStaticBox.cpp
@@ -160,7 +160,7 @@ void LabeledStaticBox::DrawBorderAndLabel(wxDC& dc)
     wxSize wSz = GetSize();
 
     dc.SetBrush(*wxTRANSPARENT_BRUSH);
-    dc.SetPen(wxPen(border_color.colorForStates(state_handler.states()), m_border_width, wxSOLID));
+    dc.SetPen(wxPen(border_color.colorForStates(state_handler.states()), m_border_width, wxPENSTYLE_SOLID));
     dc.DrawRoundedRectangle( // Border
         std::max(0, m_pos.x),
         std::max(0, m_pos.y) + m_label_height * .5,
@@ -185,4 +185,4 @@ void LabeledStaticBox::GetBordersForSizer(int* borderTop, int* borderOther) cons
 #ifdef __WXOSX__
     *borderOther = 5; // Make sure macOS uses the same border padding as other platforms
 #endif
-}
\ No newline at end of file
+}