Cut filament when cutter is enabled and MMU load fails.

Firmware/Marlin.h

@@ -285,6 +285,7 @@ void setPwmFrequency(uint8_t pin, int val);
 #endif //CRITICAL_SECTION_START
 
 extern bool fans_check_enabled;
+extern bool cutter_enabled;
 extern float homing_feedrate[];
 extern bool axis_relative_modes[];
 extern int feedmultiply;

Firmware/Marlin_main.cpp

@@ -510,6 +510,7 @@ void servo_init()
 
 
 bool fans_check_enabled = true;
+bool cutter_enabled = false;
 
 
 #ifdef TMC2130

Firmware/mmu.cpp

@@ -1439,6 +1439,12 @@ void mmu_continue_loading()
 			if(mmu_load_fail < 255) eeprom_update_byte((uint8_t*)EEPROM_MMU_LOAD_FAIL, mmu_load_fail + 1);
 			if(mmu_load_fail_tot < 65535) eeprom_update_word((uint16_t*)EEPROM_MMU_LOAD_FAIL_TOT, mmu_load_fail_tot + 1);
 
+			if (cutter_enabled)
+			{
+			    mmu_command(MmuCmd::K0 + tmp_extruder);
+			    manage_response(true, true, MMU_UNLOAD_MOVE);
+			}
+
             mmu_command(MmuCmd::T0 + tmp_extruder);
             manage_response(true, true, MMU_TCODE_MOVE);
             load_more();

Firmware/ultralcd.cpp

@@ -199,6 +199,7 @@ static void fil_unload_menu();
 #endif // SNMM || SNMM_V2
 static void lcd_disable_farm_mode();
 static void lcd_set_fan_check();
+static void lcd_cutter_enabled();
 static char snmm_stop_print_menu();
 #ifdef SDCARD_SORT_ALPHA
  static void lcd_sort_type_set();
@@ -2292,6 +2293,10 @@ void lcd_set_fan_check() {
 	eeprom_update_byte((unsigned char *)EEPROM_FAN_CHECK_ENABLED, fans_check_enabled);
 }
 
+void lcd_cutter_enabled() {
+    cutter_enabled = !cutter_enabled;
+}
+
 void lcd_set_filament_autoload() {
      fsensor_autoload_set(!fsensor_autoload_enabled);
 }
@@ -5207,6 +5212,11 @@ static void lcd_settings_menu()
 
 	SETTINGS_AUTO_DEPLETE;
 
+    if (cutter_enabled == true)
+        MENU_ITEM_FUNCTION_P(_i("Cutter       [on]"), lcd_cutter_enabled);////MSG_FANS_CHECK_ON c=17 r=1
+    else
+        MENU_ITEM_FUNCTION_P(_i("Cutter      [off]"), lcd_cutter_enabled);////MSG_FANS_CHECK_OFF c=17 r=1
+
 	if (fans_check_enabled == true)
 		MENU_ITEM_FUNCTION_P(_i("Fans check   [on]"), lcd_set_fan_check);////MSG_FANS_CHECK_ON c=17 r=1
 	else