1

lib/pages/home_page.dart

@@ -92,6 +92,7 @@ class _HomePageState extends State<HomePage> {
 
   Future<void> _performLogout() async {
     setState(() => _loggingOut = true);
+    await Future.delayed(const Duration(seconds: 5));
     try {
       if (TitleServerConfigHolder().isConfigured && _data != null && _data!.isLogin) {
         final service = TitleApiService(TitleServerConfigHolder().config!);
@@ -114,17 +115,21 @@ class _HomePageState extends State<HomePage> {
       appBar: AppBar(
         title: Text(_tabTitles[_currentTab]),
         actions: [
-          IconButton(
-            icon: _loggingOut
-                ? const SizedBox(
-                    width: 20,
-                    height: 20,
-                    child: CircularProgressIndicator(strokeWidth: 2),
-                  )
-                : const Icon(Icons.logout),
-            tooltip: AppStrings.logoutTooltip,
-            onPressed: _loggingOut ? null : _performLogout,
-          ),
+          if (_loggingOut)
+            const Padding(
+              padding: EdgeInsets.only(right: 12),
+              child: SizedBox(
+                width: 20,
+                height: 20,
+                child: CircularProgressIndicator(strokeWidth: 2),
+              ),
+            )
+          else
+            IconButton(
+              icon: const Icon(Icons.logout),
+              tooltip: AppStrings.logoutTooltip,
+              onPressed: _performLogout,
+            ),
         ],
       ),
       body: IndexedStack(

lib/pages/ticket_page.dart

@@ -206,6 +206,9 @@ class _TicketPageState extends State<TicketPage> {
         // ignore: avoid_print
         print('[TICKET] user already logged in, force-logout stale session...');
         try {
+          print('[TICKET] force-logout: waiting 5s...');
+          await Future.delayed(const Duration(seconds: 5));
+          print('[TICKET] force-logout: sending...');
           await service.userLogout(userId: userId, loginDateTime: DateTime.now().millisecondsSinceEpoch ~/ 1000);
           // ignore: avoid_print
           print('[TICKET] force-logout done');
@@ -226,6 +229,11 @@ class _TicketPageState extends State<TicketPage> {
       // ignore: avoid_print
       print('[TICKET] loginId=$loginId lastLoginDate=$lastLoginDate loginDateTime=$loginTimestamp newToken=${loginResult.token}');
 
+      // Wait 60s after LoginPacket for stability
+      // ignore: avoid_print
+      print('[TICKET] waiting 60s after LoginPacket...');
+      await Future.delayed(const Duration(seconds: 60));
+
       // Step 3: Get user data (for playerRating)
       // ignore: avoid_print
       print('[TICKET] ── Step 3: getUserData ──');
@@ -324,6 +332,9 @@ class _TicketPageState extends State<TicketPage> {
         print('[TICKET] ── Step 7: userLogout (loginId=$loginId, loginTimestamp=$loginTimestamp) ──');
         try {
           _updateStep(TicketStep.logout);
+          print('[TICKET] ── Step 7: userLogout ── waiting 5s...');
+          await Future.delayed(const Duration(seconds: 5));
+          print('[TICKET] ── Step 7: userLogout ── sending...');
           await service.userLogout(userId: userId, loginDateTime: loginTimestamp);
           // ignore: avoid_print
           print('[TICKET] userLogout OK');

lib/services/title_api_service.dart

@@ -90,10 +90,16 @@ class TitleApiService {
   }
 
   Map<String, dynamic> _processResponseBody(Uint8List bodyBytes) {
-    final decrypted = _aesDecrypt(bodyBytes);
-    final decompressed = _decompress(decrypted);
-    final jsonStr = utf8.decode(decompressed);
-    return jsonDecode(jsonStr) as Map<String, dynamic>;
+    try {
+      final decrypted = _aesDecrypt(bodyBytes);
+      final decompressed = _decompress(decrypted);
+      final jsonStr = utf8.decode(decompressed);
+      return jsonDecode(jsonStr) as Map<String, dynamic>;
+    } on FormatException catch (e) {
+      throw TitleApiException('Response body is not valid JSON: $e');
+    } on Exception catch (e) {
+      throw TitleApiException('Failed to process response body: $e');
+    }
   }
 
   String _buildHash(String apiName) {
@@ -155,6 +161,10 @@ class TitleApiService {
       throw TitleApiException('$apiName returned ${response.statusCode}');
     }
 
+    if (response.bodyBytes.isEmpty) {
+      throw TitleApiException('$apiName returned empty body');
+    }
+
     final json = _processResponseBody(response.bodyBytes);
     final raw = const JsonEncoder.withIndent('  ').convert(json);
     // ignore: avoid_print