diff --git a/src/libslic3r/GCode/GCodeProcessor.cpp b/src/libslic3r/GCode/GCodeProcessor.cpp
index 7506a105d7..70e8a9d91d 100644
--- a/src/libslic3r/GCode/GCodeProcessor.cpp
+++ b/src/libslic3r/GCode/GCodeProcessor.cpp
@@ -4943,14 +4943,14 @@ void GCodeProcessor::run_post_process()
                     // found an invalid value, clamp it to a valid one
                     tool_number = std::clamp<int>(0, m_extruder_temps_config.size() - 1, tool_number);
                     // emit warning
-                    std::string warning = _u8L("GCode Post-Processor encountered an invalid toolchange, maybe from a custom gcode:");
+                    std::string warning = "GCode Post-Processor encountered an invalid toolchange, maybe from a custom gcode:";
                     warning += "\n> ";
                     warning += gcode_line;
-                    warning += _u8L("Generated M104 lines may be incorrect.");
+                    warning += "Generated M104 lines may be incorrect.";
                     BOOST_LOG_TRIVIAL(error) << warning;
                     // Orca todo
-                    // if (m_print != nullptr)
-                    //     m_print->active_step_add_warning(PrintStateBase::WarningLevel::CRITICAL, warning);
+                    if (m_print != nullptr)
+                        m_print->active_step_add_warning(PrintStateBase::WarningLevel::CRITICAL, warning);
                 }
             }
             export_lines.insert_lines(
diff --git a/src/libslic3r/PrintBase.hpp b/src/libslic3r/PrintBase.hpp
index aecef8a238..b680ac274e 100644
--- a/src/libslic3r/PrintBase.hpp
+++ b/src/libslic3r/PrintBase.hpp
@@ -583,7 +583,16 @@ public:
     bool            is_step_done(PrintStepEnum step) const { return m_state.is_done(step, this->state_mutex()); }
 	PrintStateBase::StateWithTimeStamp step_state_with_timestamp(PrintStepEnum step) const { return m_state.state_with_timestamp(step, this->state_mutex()); }
     PrintStateBase::StateWithWarnings  step_state_with_warnings(PrintStepEnum step) const { return m_state.state_with_warnings(step, this->state_mutex()); }
-
+    // Add a slicing warning to the active Print step and send a status notification.
+    // This method could be called multiple times between this->set_started() and this->set_done().
+    void            active_step_add_warning(PrintStateBase::WarningLevel warning_level, const std::string &message,
+                            PrintStateBase::SlicingNotificationType message_id = PrintStateBase::SlicingDefaultNotification)
+    {
+        std::pair<PrintStepEnum, bool> active_step = m_state.active_step_add_warning(warning_level, message, (int)message_id, this->state_mutex());
+        if (active_step.second)
+            // Update UI.
+            this->status_update_warnings(static_cast<int>(active_step.first), warning_level, message, nullptr, message_id);
+    }
 protected:
     bool            set_started(PrintStepEnum step) { return m_state.set_started(step, this->state_mutex(), [this](){ this->throw_if_canceled(); }); }
 	PrintStateBase::TimeStamp set_done(PrintStepEnum step) {
@@ -605,16 +614,6 @@ protected:
 	bool            is_step_started_unguarded(PrintStepEnum step) const { return m_state.is_started_unguarded(step); }
 	bool            is_step_done_unguarded(PrintStepEnum step) const { return m_state.is_done_unguarded(step); }
 
-    // Add a slicing warning to the active Print step and send a status notification.
-    // This method could be called multiple times between this->set_started() and this->set_done().
-    void            active_step_add_warning(PrintStateBase::WarningLevel warning_level, const std::string &message,
-                            PrintStateBase::SlicingNotificationType message_id = PrintStateBase::SlicingDefaultNotification)
-    {
-        std::pair<PrintStepEnum, bool> active_step = m_state.active_step_add_warning(warning_level, message, (int)message_id, this->state_mutex());
-        if (active_step.second)
-            // Update UI.
-            this->status_update_warnings(static_cast<int>(active_step.first), warning_level, message, nullptr, message_id);
-    }
 
 private:
     PrintState<PrintStepEnum, COUNT> m_state;