Restore broken Dual X Carriage

Marlin/src/module/stepper.cpp

 
 #if ENABLED(X_DUAL_STEPPER_DRIVERS)
   #define X_APPLY_DIR(v,Q) do{ X_DIR_WRITE(v); X2_DIR_WRITE((v) != INVERT_X2_VS_X_DIR); }while(0)
-  #if ENABLED(DUAL_X_CARRIAGE)
-    #define X_APPLY_DIR(v,ALWAYS) \
-      if (extruder_duplication_enabled || ALWAYS) { \
-        X_DIR_WRITE(v); \
-        X2_DIR_WRITE(v); \
-      } \
-      else { \
-        if (current_block->active_extruder) X2_DIR_WRITE(v); else X_DIR_WRITE(v); \
-      }
-    #define X_APPLY_STEP(v,ALWAYS) \
-      if (extruder_duplication_enabled || ALWAYS) { \
-        X_STEP_WRITE(v); \
-        X2_STEP_WRITE(v); \
-      } \
-      else { \
-        if (current_block->active_extruder) X2_STEP_WRITE(v); else X_STEP_WRITE(v); \
-      }
-  #elif ENABLED(X_DUAL_ENDSTOPS)
+  #if ENABLED(X_DUAL_ENDSTOPS)
     #define X_APPLY_STEP(v,Q) DUAL_ENDSTOP_APPLY_STEP(X,v)
   #else
     #define X_APPLY_STEP(v,Q) do{ X_STEP_WRITE(v); X2_STEP_WRITE(v); }while(0)
   #endif
+#elif ENABLED(DUAL_X_CARRIAGE)
+  #define X_APPLY_DIR(v,ALWAYS) \
+    if (extruder_duplication_enabled || ALWAYS) { \
+      X_DIR_WRITE(v); \
+      X2_DIR_WRITE(v); \
+    } \
+    else { \
+      if (current_block->active_extruder) X2_DIR_WRITE(v); else X_DIR_WRITE(v); \
+    }
+  #define X_APPLY_STEP(v,ALWAYS) \
+    if (extruder_duplication_enabled || ALWAYS) { \
+      X_STEP_WRITE(v); \
+      X2_STEP_WRITE(v); \
+    } \
+    else { \
+      if (current_block->active_extruder) X2_STEP_WRITE(v); else X_STEP_WRITE(v); \
+    }
 #else
   #define X_APPLY_DIR(v,Q) X_DIR_WRITE(v)
   #define X_APPLY_STEP(v,Q) X_STEP_WRITE(v)