Fix limits on acceleration editing (#17280)

Marlin/src/lcd/menu/menu_advanced.cpp

     START_MENU();
     BACK_ITEM(MSG_ADVANCED_SETTINGS);
 
-    static float max_accel = _MAX(planner.settings.max_acceleration_mm_per_s2[A_AXIS], planner.settings.max_acceleration_mm_per_s2[B_AXIS], planner.settings.max_acceleration_mm_per_s2[C_AXIS]);
+    const float max_accel = _MAX(planner.settings.max_acceleration_mm_per_s2[A_AXIS], planner.settings.max_acceleration_mm_per_s2[B_AXIS], planner.settings.max_acceleration_mm_per_s2[C_AXIS]);
     // M204 P Acceleration
     EDIT_ITEM_FAST(float5_25, MSG_ACC, &planner.settings.acceleration, 25, max_accel);
 
     // M204 R Retract Acceleration
-    EDIT_ITEM_FAST(float5, MSG_A_RETRACT, &planner.settings.retract_acceleration, 100, max_accel);
+    EDIT_ITEM_FAST(float5, MSG_A_RETRACT, &planner.settings.retract_acceleration, 100, planner.settings.max_acceleration_mm_per_s2[E_AXIS_N(active_extruder)]);
 
     // M204 T Travel Acceleration
     EDIT_ITEM_FAST(float5_25, MSG_A_TRAVEL, &planner.settings.travel_acceleration, 25, max_accel);