diff --git a/acs2/nladmin-system/nlsso-server/src/main/java/org/nl/acs/device_driver/stacker/standard_stacker/StandardStackerDeviceDriver.java b/acs2/nladmin-system/nlsso-server/src/main/java/org/nl/acs/device_driver/stacker/standard_stacker/StandardStackerDeviceDriver.java
index b48a92b56..24b714249 100644
--- a/acs2/nladmin-system/nlsso-server/src/main/java/org/nl/acs/device_driver/stacker/standard_stacker/StandardStackerDeviceDriver.java
+++ b/acs2/nladmin-system/nlsso-server/src/main/java/org/nl/acs/device_driver/stacker/standard_stacker/StandardStackerDeviceDriver.java
@@ -473,9 +473,11 @@ public class StandardStackerDeviceDriver extends AbstractOpcDeviceDriver impleme
                 case 5:
                     message = "universal_releasing_completed";
                     Map<String, Object> map = new HashMap<>();
+                    List list5 = new ArrayList<>();
                     map.put("code", "to_command");
                     map.put("value", 5);
-                    list.add(map);
+                    list5.add(map);
+                    this.writing(list5);
                     Instruction inst = checkInst();
                     try {
                         finish_instruction(inst);
@@ -489,7 +491,6 @@ public class StandardStackerDeviceDriver extends AbstractOpcDeviceDriver impleme
                             if (ObjectUtil.isNotNull(list1)) {
                                 this.writing(list1);
                             }
-                            list.remove(0);
                         }
                     } catch (Exception e) {
                         e.printStackTrace();