diff --git a/lib/content_views/task_list_page.dart b/lib/content_views/task_list_page.dart
index a23c2b0..066e29c 100644
--- a/lib/content_views/task_list_page.dart
+++ b/lib/content_views/task_list_page.dart
@@ -257,6 +257,7 @@ class _TaskListPageState extends State<TaskListPage> with ProducerMixin {
   _processTaskArrivedOrFinished(TaskInfo taskInfo) {
     Util.logInfo('Task ${taskInfo.task.sId} called');
 
+    if (!mounted) return;
     showTaskArrivedPopup(context, taskInfo, () async {
       DateFormat dateFormat = DateFormat("dd.MM.yyyy HH:mm");
 
@@ -268,7 +269,9 @@ class _TaskListPageState extends State<TaskListPage> with ProducerMixin {
 
       _sendArrivedMessage(taskInfo);
 
-      setState(() {});
+      if (mounted) {
+        setState(() {});
+      }
 
       _finishTaskProcessing(taskInfo);
     });
@@ -277,6 +280,7 @@ class _TaskListPageState extends State<TaskListPage> with ProducerMixin {
   _processCommissionNumber(TaskInfo taskInfo) {
     Util.logInfo('Task ${taskInfo.task.sId} called');
 
+    if (!mounted) return;
     showComissionNumberPopup(context, taskInfo, (comissionNumber) async {
       var answer = await _createAnswerHeader(taskInfo);
       answer.val = comissionNumber;
@@ -287,7 +291,9 @@ class _TaskListPageState extends State<TaskListPage> with ProducerMixin {
 
       _commisionNumber = comissionNumber;
 
-      setState(() {});
+      if (mounted) {
+        setState(() {});
+      }
 
       _finishTaskProcessing(taskInfo);
     });
@@ -316,6 +322,7 @@ class _TaskListPageState extends State<TaskListPage> with ProducerMixin {
   _processTakePhotos(TaskInfo taskInfo) {
     Util.logInfo('Task ${taskInfo.task.sId} called');
 
+    if (!mounted) return;
     showTakePhotosPopup(context, taskInfo, (List<Uint8List>? photos) async {
       if (photos != null) {
         await MyApp.isarInstance.writeTxn(() async {
@@ -335,7 +342,9 @@ class _TaskListPageState extends State<TaskListPage> with ProducerMixin {
         taskInfo.additionalText = "Fotos aufgenommen";
         taskInfo.completed = true;
 
-        setState(() {});
+        if (mounted) {
+          setState(() {});
+        }
 
         _finishTaskProcessing(taskInfo);
       }
@@ -362,6 +371,7 @@ class _TaskListPageState extends State<TaskListPage> with ProducerMixin {
   void _processReceiptGiver(TaskInfo taskInfo) {
     Util.logInfo('Task ${taskInfo.task.sId} called');
 
+    if (!mounted) return;
     showReceiptGiverPopup(context, taskInfo, (receiptGiver, selectedTourEntry) async {
       var answer = await _createAnswerHeader(taskInfo);
       answer.code = selectedTourEntry.code;
@@ -371,7 +381,9 @@ class _TaskListPageState extends State<TaskListPage> with ProducerMixin {
       taskInfo.additionalText = receiptGiver;
       taskInfo.completed = true;
 
-      setState(() {});
+      if (mounted) {
+        setState(() {});
+      }
 
       _finishTaskProcessing(taskInfo);
     });
@@ -380,8 +392,10 @@ class _TaskListPageState extends State<TaskListPage> with ProducerMixin {
   void _processPickupDeliveryStatusTask(TaskInfo taskInfo) {
     Util.logInfo('Task ${taskInfo.task.sId} called');
 
+    final currentContext = context;
     Future.delayed(const Duration(seconds: 1), () async {
-      showPickupDeliveryStatusPopup(context, taskInfo, (tourEntry, remark) async {
+      if (!mounted) return;
+      showPickupDeliveryStatusPopup(currentContext, taskInfo, (tourEntry, remark) async {
         var answer = await _createAnswerHeader(taskInfo);
         answer.code = tourEntry!.code;
         answer.val = remark;
@@ -392,7 +406,9 @@ class _TaskListPageState extends State<TaskListPage> with ProducerMixin {
 
         _finishTaskProcessing(taskInfo);
 
-        setState(() {});
+        if (mounted) {
+          setState(() {});
+        }
       });
     });
   }
@@ -404,8 +420,10 @@ class _TaskListPageState extends State<TaskListPage> with ProducerMixin {
 
     SystemChrome.setPreferredOrientations([DeviceOrientation.landscapeLeft]);
 
+    final currentContext = context;
     Future.delayed(const Duration(seconds: 1), () async {
-      showSignaturePopup(context, taskInfo, (String? signature) async {
+      if (!mounted) return;
+      showSignaturePopup(currentContext, taskInfo, (String? signature) async {
         MyApp.suppressAcceptDialog = false;
 
         SystemChrome.setPreferredOrientations([DeviceOrientation.portraitUp]);
diff --git a/lib/main.dart b/lib/main.dart
index 75aa08d..6290194 100644
--- a/lib/main.dart
+++ b/lib/main.dart
@@ -211,7 +211,7 @@ class _MainState extends State<Main> with SingleTickerProviderStateMixin, Produc
 
   final ValueNotifier<bool> _connectionLostValueNotifier = ValueNotifier<bool>(true);
 
-  late AnimationController? _animationController = null;
+  late AnimationController? _animationController;
   late Animation<double> _animation;
 
   Timer? _checkForNewState0JobsJobsTimer;
@@ -426,20 +426,28 @@ class _MainState extends State<Main> with SingleTickerProviderStateMixin, Produc
   }
 
   void _replaceContentView(ContentViewWidget widget) async {
+    final currentContext = context;
     Future.delayed(const Duration(seconds: 0), () async {
       contentStack.clear();
 
-      setState(() {
-        _currentContent = widget;
-      });
+      if (mounted) {
+        setState(() {
+          _currentContent = widget;
+        });
+      }
 
-      _currentTitleWidget = await _currentContent.getHeaderWidget(context);
+      if (mounted) {
+        _currentTitleWidget = await _currentContent.getHeaderWidget(currentContext);
+      }
 
-      setState(() {});
+      if (mounted) {
+        setState(() {});
+      }
     });
   }
 
   void _popContentView(int count) {
+    final currentContext = context;
     Future.delayed(const Duration(seconds: 0), () async {
       for (int i = 0; i < count - 1; i++) {
         contentStack.pop();
@@ -449,19 +457,26 @@ class _MainState extends State<Main> with SingleTickerProviderStateMixin, Produc
 
       _currentContent = previousContentView;
 
-      _currentTitleWidget = await _currentContent.getHeaderWidget(context);
+      if (mounted) {
+        _currentTitleWidget = await _currentContent.getHeaderWidget(currentContext);
+      }
 
-      setState(() {});
+      if (mounted) {
+        setState(() {});
+      }
     });
   }
 
   void _pushContentView(ContentViewWidget widget) {
+    final currentContext = context;
     Future.delayed(const Duration(seconds: 0), () async {
       contentStack.push(_currentContent);
 
       _currentContent = widget;
 
-      _currentTitleWidget = await _currentContent.getHeaderWidget(context);
+      if (mounted) {
+        _currentTitleWidget = await _currentContent.getHeaderWidget(currentContext);
+      }
 
       if (mounted) {
         setState(() {});
diff --git a/lib/popups/accept_jobs_popup.dart b/lib/popups/accept_jobs_popup.dart
index 4aa3d2b..048f95c 100644
--- a/lib/popups/accept_jobs_popup.dart
+++ b/lib/popups/accept_jobs_popup.dart
@@ -198,9 +198,7 @@ Future<List<Widget>> _fetchJobWidgets(StateSetter dialogState, Function() onFini
                           payload: RemoveJobMessage(id: job.id),
                         );
 
-                        if (mounted) {
-                          setState(() {});
-                        }
+                        setState(() {});
                       });
                     }),
                   ),
@@ -217,9 +215,7 @@ Future<List<Widget>> _fetchJobWidgets(StateSetter dialogState, Function() onFini
                           payload: RemoveJobMessage(id: job.id),
                         );
 
-                        if (mounted) {
-                          setState(() {});
-                        }
+                        setState(() {});
                       });
                     }),
                   )
diff --git a/lib/popups/tasks_popups/arrived_popup.dart b/lib/popups/tasks_popups/arrived_popup.dart
index 5508368..4d8bbc9 100644
--- a/lib/popups/tasks_popups/arrived_popup.dart
+++ b/lib/popups/tasks_popups/arrived_popup.dart
@@ -6,10 +6,16 @@ showTaskArrivedPopup(BuildContext context, TaskInfo taskInfo, Function() onFinis
   await showDialog(
       context: context,
       builder: (BuildContext context) {
-        return WillPopScope(
-            onWillPop: () async {
-              return await taskDialogSecurityException(context);
-            }, // False will prevent and true will allow to dismiss
+        return PopScope(
+            canPop: false,
+            onPopInvoked: (bool didPop) async {
+              if (!didPop) {
+                final shouldPop = await taskDialogSecurityException(context);
+                if (shouldPop && context.mounted) {
+                  Navigator.of(context).pop();
+                }
+              }
+            },
             child: AlertDialog(
                 contentPadding: EdgeInsets.zero,
                 shadowColor: Colors.transparent,
diff --git a/lib/popups/tasks_popups/commision_number_popup.dart b/lib/popups/tasks_popups/commision_number_popup.dart
index eb7a5cf..6900fb5 100644
--- a/lib/popups/tasks_popups/commision_number_popup.dart
+++ b/lib/popups/tasks_popups/commision_number_popup.dart
@@ -7,9 +7,15 @@ showComissionNumberPopup(BuildContext context, TaskInfo taskInfo, Function(Strin
   await showDialog(
       context: context,
       builder: (BuildContext context) {
-        return WillPopScope(
-            onWillPop: () async {
-              return await taskDialogSecurityException(context);
+        return PopScope(
+            canPop: false,
+            onPopInvoked: (bool didPop) async {
+              if (!didPop) {
+                final shouldPop = await taskDialogSecurityException(context);
+                if (shouldPop && context.mounted) {
+                  Navigator.of(context).pop();
+                }
+              }
             },
             child: AlertDialog(
                 contentPadding: EdgeInsets.zero,
diff --git a/lib/popups/tasks_popups/pickup_delivery_status_popup.dart b/lib/popups/tasks_popups/pickup_delivery_status_popup.dart
index a164930..9858219 100644
--- a/lib/popups/tasks_popups/pickup_delivery_status_popup.dart
+++ b/lib/popups/tasks_popups/pickup_delivery_status_popup.dart
@@ -18,10 +18,16 @@ showPickupDeliveryStatusPopup(BuildContext context, TaskInfo taskInfo, Function(
         TextEditingController controller = TextEditingController();
         TextEditingController remController = TextEditingController();
 
-        return WillPopScope(
-            onWillPop: () async {
-          return await taskDialogSecurityException(context);
-        },
+        return PopScope(
+            canPop: false,
+            onPopInvoked: (bool didPop) async {
+              if (!didPop) {
+                final shouldPop = await taskDialogSecurityException(context);
+                if (shouldPop && context.mounted) {
+                  Navigator.of(context).pop();
+                }
+              }
+            },
         child: AlertDialog(
             contentPadding: EdgeInsets.zero,
             shadowColor: Colors.transparent,
diff --git a/lib/popups/tasks_popups/receipt_giver_popup.dart b/lib/popups/tasks_popups/receipt_giver_popup.dart
index 58889d5..6f3fa9f 100644
--- a/lib/popups/tasks_popups/receipt_giver_popup.dart
+++ b/lib/popups/tasks_popups/receipt_giver_popup.dart
@@ -17,11 +17,17 @@ showReceiptGiverPopup(BuildContext context, TaskInfo taskInfo, Function(String,
   await showDialog(
       context: context,
       builder: (BuildContext context) {
-        return WillPopScope(
-            onWillPop: () async {
-          return await taskDialogSecurityException(context);
-        },
-        child: AlertDialog(
+        return PopScope(
+            canPop: false,
+            onPopInvoked: (bool didPop) async {
+              if (!didPop) {
+                final shouldPop = await taskDialogSecurityException(context);
+                if (shouldPop && context.mounted) {
+                  Navigator.of(context).pop();
+                }
+              }
+            },
+            child: AlertDialog(
             contentPadding: EdgeInsets.zero,
             shadowColor: Colors.transparent,
             backgroundColor: Colors.white,
diff --git a/lib/popups/tasks_popups/signature_popup.dart b/lib/popups/tasks_popups/signature_popup.dart
index be1237b..62ca833 100644
--- a/lib/popups/tasks_popups/signature_popup.dart
+++ b/lib/popups/tasks_popups/signature_popup.dart
@@ -8,15 +8,18 @@ showSignaturePopup(BuildContext context, TaskInfo taskInfo, Function(String?) on
   await showDialog(
       context: context,
       builder: (BuildContext context) {
-        return WillPopScope(
-            onWillPop: () async {
-              var result = await taskDialogSecurityException(context);
-
-              if (result) {
-                SystemChrome.setPreferredOrientations([DeviceOrientation.portraitUp]);
+        return PopScope(
+            canPop: false,
+            onPopInvoked: (bool didPop) async {
+              if (!didPop) {
+                final shouldPop = await taskDialogSecurityException(context);
+                if (shouldPop) {
+                  SystemChrome.setPreferredOrientations([DeviceOrientation.portraitUp]);
+                  if (context.mounted) {
+                    Navigator.of(context).pop();
+                  }
+                }
               }
-
-              return result;
             },
             child: AlertDialog(
                 contentPadding: EdgeInsets.zero,
diff --git a/lib/popups/tasks_popups/station_notice_popup.dart b/lib/popups/tasks_popups/station_notice_popup.dart
index f8916ed..867add1 100644
--- a/lib/popups/tasks_popups/station_notice_popup.dart
+++ b/lib/popups/tasks_popups/station_notice_popup.dart
@@ -7,11 +7,17 @@ showStationNoticePopup(BuildContext context, TaskInfo taskInfo, Function(String)
   await showDialog(
     context: context,
     builder: (BuildContext context) {
-      return WillPopScope(
-          onWillPop: () async {
-        return await taskDialogSecurityException(context);
-      },
-      child: AlertDialog(
+      return PopScope(
+          canPop: false,
+          onPopInvoked: (bool didPop) async {
+            if (!didPop) {
+              final shouldPop = await taskDialogSecurityException(context);
+              if (shouldPop && context.mounted) {
+                Navigator.of(context).pop();
+              }
+            }
+          },
+          child: AlertDialog(
           contentPadding: EdgeInsets.zero,
           shadowColor: Colors.transparent,
           backgroundColor: Colors.white,
diff --git a/lib/popups/tasks_popups/take_photos_popup.dart b/lib/popups/tasks_popups/take_photos_popup.dart
index edc7a5e..a1ef486 100644
--- a/lib/popups/tasks_popups/take_photos_popup.dart
+++ b/lib/popups/tasks_popups/take_photos_popup.dart
@@ -16,10 +16,16 @@ Future<void> showTakePhotosPopup(BuildContext context, TaskInfo taskInfo, Functi
   await showDialog(
       context: context,
       builder: (BuildContext context) {
-        return WillPopScope(
-            onWillPop: () async {
-          return await taskDialogSecurityException(context);
-        },
+        return PopScope(
+            canPop: false,
+            onPopInvoked: (bool didPop) async {
+              if (!didPop) {
+                final shouldPop = await taskDialogSecurityException(context);
+                if (shouldPop && context.mounted) {
+                  Navigator.of(context).pop();
+                }
+              }
+            },
         child: AlertDialog(
             contentPadding: EdgeInsets.zero,
             shadowColor: Colors.transparent,
diff --git a/lib/popups/tasks_popups/zip_popup.dart b/lib/popups/tasks_popups/zip_popup.dart
index 0d30164..b7b7921 100644
--- a/lib/popups/tasks_popups/zip_popup.dart
+++ b/lib/popups/tasks_popups/zip_popup.dart
@@ -5,11 +5,17 @@ showZipPopup(BuildContext context, String text, String buttonText, Function(Stri
   await showDialog(
       context: context,
       builder: (BuildContext context) {
-        return WillPopScope(
-            onWillPop: () async {
-          return await taskDialogSecurityException(context);
-        },
-        child: AlertDialog(
+        return PopScope(
+            canPop: false,
+            onPopInvoked: (bool didPop) async {
+              if (!didPop) {
+                final shouldPop = await taskDialogSecurityException(context);
+                if (shouldPop && context.mounted) {
+                  Navigator.of(context).pop();
+                }
+              }
+            },
+            child: AlertDialog(
             contentPadding: EdgeInsets.zero,
             shadowColor: Colors.transparent,
             backgroundColor: Colors.white,
diff --git a/lib/tools/mqtt_core.dart b/lib/tools/mqtt_core.dart
index 53b87f1..59e60b4 100644
--- a/lib/tools/mqtt_core.dart
+++ b/lib/tools/mqtt_core.dart
@@ -1,5 +1,6 @@
 import 'dart:async';
 import 'dart:convert';
+import 'dart:io';
 import 'dart:math';
 
 import 'package:archive/archive.dart';
@@ -274,6 +275,10 @@ class MqttCore with ProducerMixin, ConsumerMixin {
               _messageAcknowledgeReceived(jsonDecode(payloadString));
               break;
 
+            case "command/logout":
+              _commandLogoutReceived(jsonDecode(payloadString));
+              break;
+
             default:
               Util.logInfo('Unknown topic: $topic');
               break;
@@ -724,6 +729,25 @@ class MqttCore with ProducerMixin, ConsumerMixin {
     );
   }
 
+  void _commandLogoutReceived(Map<String, dynamic> payload) {
+    try {
+      String timestamp = payload['timestamp'] ?? 'Unknown timestamp';
+      Util.logInfo('Command logout received with timestamp: $timestamp');
+
+      // Disconnect MQTT client gracefully
+      _disconnectMqttClient();
+
+      // Exit the application reliably
+      Future.delayed(const Duration(milliseconds: 500), () {
+        exit(0);
+      });
+    } catch (ex) {
+      Util.logException('Error processing logout command: ${ex.toString()}');
+      // Force exit even if there's an error
+      exit(0);
+    }
+  }
+
   String _encapsulateMessage(String messageId, bool requiresAck, Map<String, dynamic> message) {
     var messageHeader = MessageHeader();
     messageHeader.messageId = messageId;