diff --git a/src/slic3r/GUI/3DBed.cpp b/src/slic3r/GUI/3DBed.cpp
index 4185b6664..82b512270 100644
--- a/src/slic3r/GUI/3DBed.cpp
+++ b/src/slic3r/GUI/3DBed.cpp
@@ -204,6 +204,7 @@ bool Bed3D::set_shape(const Pointfs& shape, const std::string& custom_texture, c
     std::string cst_texture(custom_texture);
     if (!cst_texture.empty())
     {
+        std::replace(cst_texture.begin(), cst_texture.end(), '\\', '/');
         if ((!boost::algorithm::iends_with(custom_texture, ".png") && !boost::algorithm::iends_with(custom_texture, ".svg")) || !boost::filesystem::exists(custom_texture))
             cst_texture = "";
     }
@@ -212,6 +213,7 @@ bool Bed3D::set_shape(const Pointfs& shape, const std::string& custom_texture, c
     std::string cst_model(custom_model);
     if (!cst_model.empty())
     {
+        std::replace(cst_model.begin(), cst_model.end(), '\\', '/');
         if (!boost::algorithm::iends_with(custom_model, ".stl") || !boost::filesystem::exists(custom_model))
             cst_model = "";
     }
diff --git a/src/slic3r/GUI/BedShapeDialog.cpp b/src/slic3r/GUI/BedShapeDialog.cpp
index 5624ada9d..e83904a91 100644
--- a/src/slic3r/GUI/BedShapeDialog.cpp
+++ b/src/slic3r/GUI/BedShapeDialog.cpp
@@ -60,7 +60,9 @@ void BedShapePanel::build_panel(const ConfigOptionPoints& default_pt, const Conf
 {
     m_shape = default_pt.values;
     m_custom_texture = custom_texture.value.empty() ? NONE : custom_texture.value;
+    std::replace(m_custom_texture.begin(), m_custom_texture.end(), '\\', '/');
     m_custom_model = custom_model.value.empty() ? NONE : custom_model.value;
+    std::replace(m_custom_model.begin(), m_custom_model.end(), '\\', '/');
 
     auto sbsizer = new wxStaticBoxSizer(wxVERTICAL, this, _(L("Shape")));
     sbsizer->GetStaticBox()->SetFont(wxGetApp().bold_font());
@@ -212,7 +214,18 @@ wxPanel* BedShapePanel::init_texture_panel()
                 wxStaticText* lbl = dynamic_cast<wxStaticText*>(e.GetEventObject());
                 if (lbl != nullptr)
                 {
-                    wxString tooltip_text = (m_custom_texture == NONE) ? "" : _(m_custom_texture);
+                    bool exists = (m_custom_texture == NONE) || boost::filesystem::exists(m_custom_texture);
+                    lbl->SetForegroundColour(exists ? wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOWTEXT) : wxColor(*wxRED));
+
+                    wxString tooltip_text = "";
+                    if (m_custom_texture != NONE)
+                    {
+                        if (!exists)
+                            tooltip_text += _(L("Not found: "));
+
+                        tooltip_text += _(m_custom_texture);
+                    }
+
                     wxToolTip* tooltip = lbl->GetToolTip();
                     if ((tooltip == nullptr) || (tooltip->GetTip() != tooltip_text))
                         lbl->SetToolTip(tooltip_text);
@@ -280,7 +293,18 @@ wxPanel* BedShapePanel::init_model_panel()
                 wxStaticText* lbl = dynamic_cast<wxStaticText*>(e.GetEventObject());
                 if (lbl != nullptr)
                 {
-                    wxString tooltip_text = (m_custom_model == NONE) ? "" : _(m_custom_model);
+                    bool exists = (m_custom_model == NONE) || boost::filesystem::exists(m_custom_model);
+                    lbl->SetForegroundColour(exists ? wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOWTEXT) : wxColor(*wxRED));
+
+                    wxString tooltip_text = "";
+                    if (m_custom_model != NONE)
+                    {
+                        if (!exists)
+                            tooltip_text += _(L("Not found: "));
+
+                        tooltip_text += _(m_custom_model);
+                    }
+
                     wxToolTip* tooltip = lbl->GetToolTip();
                     if ((tooltip == nullptr) || (tooltip->GetTip() != tooltip_text))
                         lbl->SetToolTip(tooltip_text);
@@ -521,6 +545,8 @@ void BedShapePanel::load_texture()
         return;
     }
 
+    std::replace(file_name.begin(), file_name.end(), '\\', '/');
+
     wxBusyCursor wait;
 
     m_custom_texture = file_name;
@@ -544,6 +570,8 @@ void BedShapePanel::load_model()
         return;
     }
 
+    std::replace(file_name.begin(), file_name.end(), '\\', '/');
+
     wxBusyCursor wait;
 
     m_custom_model = file_name;