diff --git a/src/slic3r/GUI/ExtraRenderers.cpp b/src/slic3r/GUI/ExtraRenderers.cpp
index 4e3577b19..068a46324 100644
--- a/src/slic3r/GUI/ExtraRenderers.cpp
+++ b/src/slic3r/GUI/ExtraRenderers.cpp
@@ -225,7 +225,8 @@ wxWindow* BitmapTextRenderer::CreateEditorCtrl(wxWindow* parent, wxRect labelRec
 bool BitmapTextRenderer::GetValueFromEditorCtrl(wxWindow* ctrl, wxVariant& value)
 {
     wxTextCtrl* text_editor = wxDynamicCast(ctrl, wxTextCtrl);
-    if (!text_editor || text_editor->GetValue().IsEmpty())
+    auto item = GetView()->GetModel()->GetParent(m_item);
+    if (!text_editor || (item.IsOk() && text_editor->GetValue().IsEmpty()))
         return false;
 
     m_was_unusable_symbol = Slic3r::GUI::Plater::has_illegal_filename_characters(text_editor->GetValue());
diff --git a/src/slic3r/GUI/GUI_ObjectList.cpp b/src/slic3r/GUI/GUI_ObjectList.cpp
index 58cfb8b59..666fb668f 100644
--- a/src/slic3r/GUI/GUI_ObjectList.cpp
+++ b/src/slic3r/GUI/GUI_ObjectList.cpp
@@ -5584,7 +5584,7 @@ void GUI::ObjectList::OnStartEditing(wxDataViewEvent &event)
             int plate_idx = node->GetPlateIdx();
             if (plate_idx >= 0) {
                 auto plate = wxGetApp().plater()->get_partplate_list().get_plate(plate_idx);
-                m_objects_model->SetName(plate->get_plate_name(), GetSelection());
+                m_objects_model->SetName(from_u8(plate->get_plate_name()), GetSelection());
             }
         }
     }
diff --git a/src/slic3r/GUI/Tab.cpp b/src/slic3r/GUI/Tab.cpp
index 648df2066..f9b48f036 100644
--- a/src/slic3r/GUI/Tab.cpp
+++ b/src/slic3r/GUI/Tab.cpp
@@ -5033,9 +5033,9 @@ void Tab::delete_preset()
                 presets += "\n - " + preset2.name;
             }
         if (count > 0) {
-            msg = _L("Presets inherited by other presets cannot be deleted");
+            msg = _L("Presets inherited by other presets can not be deleted!");
             msg += "\n";
-            msg += _L_PLURAL("The following presets inherits this preset.",
+            msg += _L_PLURAL("The following presets inherit this preset.",
                             "The following preset inherits this preset.", count);
             wxString title = from_u8((boost::format(_utf8(L("%1% Preset"))) % action).str()); // action + _(L(" Preset"));
             MessageDialog(parent(), msg + presets, title, wxOK | wxICON_ERROR).ShowModal();