diff --git a/lib/l10n/app_bg.arb b/lib/l10n/app_bg.arb
index 460bc9d..f0998d5 100644
--- a/lib/l10n/app_bg.arb
+++ b/lib/l10n/app_bg.arb
@@ -1568,5 +1568,6 @@
   "contacts_contactAdvertCopied": "Рекламата е копирана в клипборда.",
   "contacts_zeroHopContactAdvertFailed": "Неуспешно изпращане на контакт.",
   "contacts_zeroHopContactAdvertSent": "Изпратен контакт по обява.",
-  "contacts_contactAdvertCopyFailed": "Копирането на обявата в клипборда не успя."
+  "contacts_contactAdvertCopyFailed": "Копирането на обявата в клипборда не успя.",
+  "pathTrace_someHopsNoLocation": "Един или повече от хмелите липсва местоположение!"
 }
diff --git a/lib/l10n/app_de.arb b/lib/l10n/app_de.arb
index 0a72559..da3a2c5 100644
--- a/lib/l10n/app_de.arb
+++ b/lib/l10n/app_de.arb
@@ -1568,5 +1568,6 @@
   "contacts_zeroHopContactAdvertFailed": "Kontakt konnte nicht gesendet werden.",
   "contacts_zeroHopContactAdvertSent": "Kontakt über Anzeige gesendet",
   "contacts_contactAdvertCopied": "Anzeige in die Zwischenablage kopiert.",
-  "contacts_contactAdvertCopyFailed": "Kopieren des Werbeinhalts in die Zwischenablage fehlgeschlagen."
+  "contacts_contactAdvertCopyFailed": "Kopieren des Werbeinhalts in die Zwischenablage fehlgeschlagen.",
+  "pathTrace_someHopsNoLocation": "Eine oder mehrere der Hopfen fehlen einen Standort!"
 }
diff --git a/lib/l10n/app_en.arb b/lib/l10n/app_en.arb
index ee5cf7d..85e2647 100644
--- a/lib/l10n/app_en.arb
+++ b/lib/l10n/app_en.arb
@@ -1316,6 +1316,7 @@
   "pathTrace_failed": "Path trace failed.",
   "pathTrace_notAvailable": "Path trace not available.",
   "pathTrace_refreshTooltip": "Refresh Path Trace.",
+  "pathTrace_someHopsNoLocation": "One or more of the hops is missing a location!",
   "contacts_pathTrace": "Path Trace",
   "contacts_ping": "Ping",
   "contacts_repeaterPathTrace": "Path trace to repeater",
diff --git a/lib/l10n/app_es.arb b/lib/l10n/app_es.arb
index c6dad1f..ac2d926 100644
--- a/lib/l10n/app_es.arb
+++ b/lib/l10n/app_es.arb
@@ -1568,5 +1568,6 @@
   "contacts_zeroHopContactAdvertFailed": "No se pudo enviar el contacto.",
   "contacts_zeroHopContactAdvertSent": "Envió contacto por anuncio.",
   "contacts_contactAdvertCopied": "Anuncio copiado al Portapapeles.",
-  "contacts_contactAdvertCopyFailed": "Copiar anuncio al Portapapeles ha fallado."
+  "contacts_contactAdvertCopyFailed": "Copiar anuncio al Portapapeles ha fallado.",
+  "pathTrace_someHopsNoLocation": "Uno o más de los lúpulos carecen de una ubicación"
 }
diff --git a/lib/l10n/app_fr.arb b/lib/l10n/app_fr.arb
index c1157ed..71f1b1f 100644
--- a/lib/l10n/app_fr.arb
+++ b/lib/l10n/app_fr.arb
@@ -1568,5 +1568,6 @@
   "contacts_contactAdvertCopied": "Annonce copiée dans le presse-papiers.",
   "contacts_contactAdvertCopyFailed": "La copie de l'annonce vers le presse-papiers a échoué.",
   "contacts_zeroHopContactAdvertSent": "Envoyer un contact par annonce.",
-  "contacts_zeroHopContactAdvertFailed": "Échec de l'envoi du contact."
+  "contacts_zeroHopContactAdvertFailed": "Échec de l'envoi du contact.",
+  "pathTrace_someHopsNoLocation": "Une ou plusieurs des houblons manquent d'une localisation !"
 }
diff --git a/lib/l10n/app_it.arb b/lib/l10n/app_it.arb
index c32e863..bf217f5 100644
--- a/lib/l10n/app_it.arb
+++ b/lib/l10n/app_it.arb
@@ -1568,5 +1568,6 @@
   "contacts_contactAdvertCopyFailed": "Copia dell'annuncio nella Clipboard non riuscita.",
   "contacts_ShareContactZeroHop": "Condividi contatto tramite annuncio",
   "contacts_zeroHopContactAdvertFailed": "Invio del contatto non riuscito.",
-  "contacts_contactAdvertCopied": "Annuncio copiato negli Appunti."
+  "contacts_contactAdvertCopied": "Annuncio copiato negli Appunti.",
+  "pathTrace_someHopsNoLocation": "Uno o più dei luppoli mancano di una posizione!"
 }
diff --git a/lib/l10n/app_localizations.dart b/lib/l10n/app_localizations.dart
index 055667f..1a7a408 100644
--- a/lib/l10n/app_localizations.dart
+++ b/lib/l10n/app_localizations.dart
@@ -4724,6 +4724,12 @@ abstract class AppLocalizations {
   /// **'Refresh Path Trace.'**
   String get pathTrace_refreshTooltip;
 
+  /// No description provided for @pathTrace_someHopsNoLocation.
+  ///
+  /// In en, this message translates to:
+  /// **'One or more of the hops is missing a location!'**
+  String get pathTrace_someHopsNoLocation;
+
   /// No description provided for @contacts_pathTrace.
   ///
   /// In en, this message translates to:
diff --git a/lib/l10n/app_localizations_bg.dart b/lib/l10n/app_localizations_bg.dart
index 701429e..523e729 100644
--- a/lib/l10n/app_localizations_bg.dart
+++ b/lib/l10n/app_localizations_bg.dart
@@ -2695,6 +2695,10 @@ class AppLocalizationsBg extends AppLocalizations {
   @override
   String get pathTrace_refreshTooltip => 'Обнови Path Trace.';
 
+  @override
+  String get pathTrace_someHopsNoLocation =>
+      'Един или повече от хмелите липсва местоположение!';
+
   @override
   String get contacts_pathTrace => 'Пътен проследяване';
 
diff --git a/lib/l10n/app_localizations_de.dart b/lib/l10n/app_localizations_de.dart
index 514a7a1..7e51cfb 100644
--- a/lib/l10n/app_localizations_de.dart
+++ b/lib/l10n/app_localizations_de.dart
@@ -2699,6 +2699,10 @@ class AppLocalizationsDe extends AppLocalizations {
   @override
   String get pathTrace_refreshTooltip => 'Path Trace aktualisieren.';
 
+  @override
+  String get pathTrace_someHopsNoLocation =>
+      'Eine oder mehrere der Hopfen fehlen einen Standort!';
+
   @override
   String get contacts_pathTrace => 'Pfadverfolgung';
 
diff --git a/lib/l10n/app_localizations_en.dart b/lib/l10n/app_localizations_en.dart
index 040d809..9dc1427 100644
--- a/lib/l10n/app_localizations_en.dart
+++ b/lib/l10n/app_localizations_en.dart
@@ -2655,6 +2655,10 @@ class AppLocalizationsEn extends AppLocalizations {
   @override
   String get pathTrace_refreshTooltip => 'Refresh Path Trace.';
 
+  @override
+  String get pathTrace_someHopsNoLocation =>
+      'One or more of the hops is missing a location!';
+
   @override
   String get contacts_pathTrace => 'Path Trace';
 
diff --git a/lib/l10n/app_localizations_es.dart b/lib/l10n/app_localizations_es.dart
index e65cbcd..c81c9cb 100644
--- a/lib/l10n/app_localizations_es.dart
+++ b/lib/l10n/app_localizations_es.dart
@@ -2694,6 +2694,10 @@ class AppLocalizationsEs extends AppLocalizations {
   @override
   String get pathTrace_refreshTooltip => 'Actualizar Path Trace';
 
+  @override
+  String get pathTrace_someHopsNoLocation =>
+      'Uno o más de los lúpulos carecen de una ubicación';
+
   @override
   String get contacts_pathTrace => 'Rastreo de caminos';
 
diff --git a/lib/l10n/app_localizations_fr.dart b/lib/l10n/app_localizations_fr.dart
index 4496fc8..3e72ef0 100644
--- a/lib/l10n/app_localizations_fr.dart
+++ b/lib/l10n/app_localizations_fr.dart
@@ -2711,6 +2711,10 @@ class AppLocalizationsFr extends AppLocalizations {
   @override
   String get pathTrace_refreshTooltip => 'Actualiser Path Trace';
 
+  @override
+  String get pathTrace_someHopsNoLocation =>
+      'Une ou plusieurs des houblons manquent d\'une localisation !';
+
   @override
   String get contacts_pathTrace => 'Traçage de chemin';
 
diff --git a/lib/l10n/app_localizations_it.dart b/lib/l10n/app_localizations_it.dart
index 02345c4..d465f30 100644
--- a/lib/l10n/app_localizations_it.dart
+++ b/lib/l10n/app_localizations_it.dart
@@ -2695,6 +2695,10 @@ class AppLocalizationsIt extends AppLocalizations {
   @override
   String get pathTrace_refreshTooltip => 'Aggiorna Path Trace.';
 
+  @override
+  String get pathTrace_someHopsNoLocation =>
+      'Uno o più dei luppoli mancano di una posizione!';
+
   @override
   String get contacts_pathTrace => 'Traccia Percorso';
 
diff --git a/lib/l10n/app_localizations_nl.dart b/lib/l10n/app_localizations_nl.dart
index 292181f..1aa0610 100644
--- a/lib/l10n/app_localizations_nl.dart
+++ b/lib/l10n/app_localizations_nl.dart
@@ -2685,6 +2685,10 @@ class AppLocalizationsNl extends AppLocalizations {
   @override
   String get pathTrace_refreshTooltip => 'Path Trace vernieuwen.';
 
+  @override
+  String get pathTrace_someHopsNoLocation =>
+      'Een of meer van de hops ontbreken een locatie!';
+
   @override
   String get contacts_pathTrace => 'Pad Traceren';
 
diff --git a/lib/l10n/app_localizations_pl.dart b/lib/l10n/app_localizations_pl.dart
index 0832329..07ed0a6 100644
--- a/lib/l10n/app_localizations_pl.dart
+++ b/lib/l10n/app_localizations_pl.dart
@@ -2693,6 +2693,10 @@ class AppLocalizationsPl extends AppLocalizations {
   @override
   String get pathTrace_refreshTooltip => 'Odśwież ścieżkę.';
 
+  @override
+  String get pathTrace_someHopsNoLocation =>
+      'Jeden lub więcej z chmieli nie ma określonej lokalizacji!';
+
   @override
   String get contacts_pathTrace => 'Śledzenie Ścieżek';
 
diff --git a/lib/l10n/app_localizations_pt.dart b/lib/l10n/app_localizations_pt.dart
index eadea3b..3ec98d0 100644
--- a/lib/l10n/app_localizations_pt.dart
+++ b/lib/l10n/app_localizations_pt.dart
@@ -2696,6 +2696,10 @@ class AppLocalizationsPt extends AppLocalizations {
   @override
   String get pathTrace_refreshTooltip => 'Atualizar Path Trace.';
 
+  @override
+  String get pathTrace_someHopsNoLocation =>
+      'Um ou mais dos lúpulos estão sem localização!';
+
   @override
   String get contacts_pathTrace => 'Traçado de Caminho';
 
diff --git a/lib/l10n/app_localizations_ru.dart b/lib/l10n/app_localizations_ru.dart
index ec0f1ba..8dc1be7 100644
--- a/lib/l10n/app_localizations_ru.dart
+++ b/lib/l10n/app_localizations_ru.dart
@@ -2698,6 +2698,10 @@ class AppLocalizationsRu extends AppLocalizations {
   @override
   String get pathTrace_refreshTooltip => 'Обновить Path Trace';
 
+  @override
+  String get pathTrace_someHopsNoLocation =>
+      'Одному или нескольким хмелям не указано местоположение!';
+
   @override
   String get contacts_pathTrace => 'Трассировка пути';
 
diff --git a/lib/l10n/app_localizations_sk.dart b/lib/l10n/app_localizations_sk.dart
index 346047b..8dfc5ab 100644
--- a/lib/l10n/app_localizations_sk.dart
+++ b/lib/l10n/app_localizations_sk.dart
@@ -2681,6 +2681,10 @@ class AppLocalizationsSk extends AppLocalizations {
   @override
   String get pathTrace_refreshTooltip => 'Obnoviť Path Trace.';
 
+  @override
+  String get pathTrace_someHopsNoLocation =>
+      'Jedna alebo viac chmeľov chýba lokalita!';
+
   @override
   String get contacts_pathTrace => 'Sledovanie lúčov';
 
diff --git a/lib/l10n/app_localizations_sl.dart b/lib/l10n/app_localizations_sl.dart
index ed71122..558423f 100644
--- a/lib/l10n/app_localizations_sl.dart
+++ b/lib/l10n/app_localizations_sl.dart
@@ -2684,6 +2684,10 @@ class AppLocalizationsSl extends AppLocalizations {
   @override
   String get pathTrace_refreshTooltip => 'Osveži Path Trace.';
 
+  @override
+  String get pathTrace_someHopsNoLocation =>
+      'Ena ali več hmelju manjka lokacija!';
+
   @override
   String get contacts_pathTrace => 'Sledenje poti';
 
diff --git a/lib/l10n/app_localizations_sv.dart b/lib/l10n/app_localizations_sv.dart
index 97b849f..24fe764 100644
--- a/lib/l10n/app_localizations_sv.dart
+++ b/lib/l10n/app_localizations_sv.dart
@@ -2669,6 +2669,10 @@ class AppLocalizationsSv extends AppLocalizations {
   @override
   String get pathTrace_refreshTooltip => 'Uppdatera Path Trace';
 
+  @override
+  String get pathTrace_someHopsNoLocation =>
+      'En eller flera av humlen saknar en plats!';
+
   @override
   String get contacts_pathTrace => 'Path Trace';
 
diff --git a/lib/l10n/app_localizations_uk.dart b/lib/l10n/app_localizations_uk.dart
index 899d540..ec0630b 100644
--- a/lib/l10n/app_localizations_uk.dart
+++ b/lib/l10n/app_localizations_uk.dart
@@ -2705,6 +2705,10 @@ class AppLocalizationsUk extends AppLocalizations {
   @override
   String get pathTrace_refreshTooltip => 'Оновити Path Trace';
 
+  @override
+  String get pathTrace_someHopsNoLocation =>
+      'Одне або більше хмелів відсутнє місце розташування!';
+
   @override
   String get contacts_pathTrace => 'Трасування шляхів';
 
diff --git a/lib/l10n/app_localizations_zh.dart b/lib/l10n/app_localizations_zh.dart
index 7746792..021ebf3 100644
--- a/lib/l10n/app_localizations_zh.dart
+++ b/lib/l10n/app_localizations_zh.dart
@@ -2554,6 +2554,9 @@ class AppLocalizationsZh extends AppLocalizations {
   @override
   String get pathTrace_refreshTooltip => '重新绘制路径。';
 
+  @override
+  String get pathTrace_someHopsNoLocation => '其中一个或多个啤酒花缺少位置！';
+
   @override
   String get contacts_pathTrace => '路径追踪';
 
diff --git a/lib/l10n/app_nl.arb b/lib/l10n/app_nl.arb
index e94deb3..e12738b 100644
--- a/lib/l10n/app_nl.arb
+++ b/lib/l10n/app_nl.arb
@@ -1568,5 +1568,6 @@
   "contacts_contactAdvertCopyFailed": "Kopiëren van advertentie naar Clipboard is mislukt.",
   "contacts_ShareContact": "Kontakt naar Klembord kopiëren",
   "contacts_ShareContactZeroHop": "Contact delen via advertentie",
-  "contacts_zeroHopContactAdvertFailed": "Mislukt om contact te verzenden"
+  "contacts_zeroHopContactAdvertFailed": "Mislukt om contact te verzenden",
+  "pathTrace_someHopsNoLocation": "Een of meer van de hops ontbreken een locatie!"
 }
diff --git a/lib/l10n/app_pl.arb b/lib/l10n/app_pl.arb
index 44552c3..b771357 100644
--- a/lib/l10n/app_pl.arb
+++ b/lib/l10n/app_pl.arb
@@ -1568,5 +1568,6 @@
   "contacts_contactAdvertCopyFailed": "Kopiowanie ogłoszenia do schowka nie powiodło się.",
   "contacts_ShareContactZeroHop": "Udostępnij kontakt przez ogłoszenie",
   "contacts_ShareContact": "Kopiuj kontakt do schowka",
-  "contacts_zeroHopContactAdvertFailed": "Nie udało się wysłać kontaktu."
+  "contacts_zeroHopContactAdvertFailed": "Nie udało się wysłać kontaktu.",
+  "pathTrace_someHopsNoLocation": "Jeden lub więcej z chmieli nie ma określonej lokalizacji!"
 }
diff --git a/lib/l10n/app_pt.arb b/lib/l10n/app_pt.arb
index 56a7f2b..2601096 100644
--- a/lib/l10n/app_pt.arb
+++ b/lib/l10n/app_pt.arb
@@ -1568,5 +1568,6 @@
   "contacts_floodAdvert": "Anúncio de Inundação",
   "contacts_contactAdvertCopyFailed": "Cópia do anúncio para a Área de Transferência falhou.",
   "contacts_ShareContactZeroHop": "Compartilhar contato por anúncio",
-  "contacts_zeroHopContactAdvertFailed": "Falha ao enviar contato."
+  "contacts_zeroHopContactAdvertFailed": "Falha ao enviar contato.",
+  "pathTrace_someHopsNoLocation": "Um ou mais dos lúpulos estão sem localização!"
 }
diff --git a/lib/l10n/app_ru.arb b/lib/l10n/app_ru.arb
index 0bca5ef..c62e6bb 100644
--- a/lib/l10n/app_ru.arb
+++ b/lib/l10n/app_ru.arb
@@ -808,5 +808,6 @@
   "contacts_contactAdvertCopyFailed": "Копирование рекламы в буфер обмена не удалось.",
   "contacts_addContactFromClipboard": "Добавить контакт из буфера обмена",
   "contacts_ShareContactZeroHop": "Поделиться контактом по объявлению",
-  "contacts_zeroHopContactAdvertSent": "Отправлено сообщение по объявлению."
+  "contacts_zeroHopContactAdvertSent": "Отправлено сообщение по объявлению.",
+  "pathTrace_someHopsNoLocation": "Одному или нескольким хмелям не указано местоположение!"
 }
diff --git a/lib/l10n/app_sk.arb b/lib/l10n/app_sk.arb
index d61cca6..7e39e2f 100644
--- a/lib/l10n/app_sk.arb
+++ b/lib/l10n/app_sk.arb
@@ -1568,5 +1568,6 @@
   "contacts_contactAdvertCopyFailed": "Kopírovanie inzerátu do schránky zlyhalo.",
   "contacts_zeroHopContactAdvertFailed": "Zlyhalo odoslanie kontaktu.",
   "contacts_ShareContactZeroHop": "Zdieľať kontakt cez inzerát",
-  "contacts_ShareContact": "Kopírovať kontakt do schránky"
+  "contacts_ShareContact": "Kopírovať kontakt do schránky",
+  "pathTrace_someHopsNoLocation": "Jedna alebo viac chmeľov chýba lokalita!"
 }
diff --git a/lib/l10n/app_sl.arb b/lib/l10n/app_sl.arb
index cbc4e3f..c8067df 100644
--- a/lib/l10n/app_sl.arb
+++ b/lib/l10n/app_sl.arb
@@ -1568,5 +1568,6 @@
   "contacts_contactAdvertCopied": "Oglas je bil kopiran v odložišče.",
   "contacts_contactAdvertCopyFailed": "Kopiranje oglasa v odložišče je spodletelo.",
   "contacts_ShareContactZeroHop": "Deliti kontakt prek oglasa",
-  "contacts_ShareContact": "Kopiraj stik v Odložišče"
+  "contacts_ShareContact": "Kopiraj stik v Odložišče",
+  "pathTrace_someHopsNoLocation": "Ena ali več hmelju manjka lokacija!"
 }
diff --git a/lib/l10n/app_sv.arb b/lib/l10n/app_sv.arb
index 05f77cb..9e2f3bf 100644
--- a/lib/l10n/app_sv.arb
+++ b/lib/l10n/app_sv.arb
@@ -1568,5 +1568,6 @@
   "contacts_contactAdvertCopyFailed": "Kopiering av annons till Urklipp misslyckades.",
   "contacts_ShareContact": "Kopiera kontakt till Urklipp",
   "contacts_zeroHopContactAdvertFailed": "Misslyckades med att skicka kontakt.",
-  "contacts_ShareContactZeroHop": "Dela kontakt via annons"
+  "contacts_ShareContactZeroHop": "Dela kontakt via annons",
+  "pathTrace_someHopsNoLocation": "En eller flera av humlen saknar en plats!"
 }
diff --git a/lib/l10n/app_uk.arb b/lib/l10n/app_uk.arb
index 3362d40..429fcdb 100644
--- a/lib/l10n/app_uk.arb
+++ b/lib/l10n/app_uk.arb
@@ -1568,5 +1568,6 @@
   "contacts_contactAdvertCopyFailed": "Копіювання оголошення в буфер обміну завершилося невдало",
   "contacts_zeroHopContactAdvertSent": "Відправлено контакт за оголошенням",
   "contacts_addContactFromClipboard": "Додати контакт з буфера обміну",
-  "contacts_ShareContactZeroHop": "Поділитися контактом за оголошенням"
+  "contacts_ShareContactZeroHop": "Поділитися контактом за оголошенням",
+  "pathTrace_someHopsNoLocation": "Одне або більше хмелів відсутнє місце розташування!"
 }
diff --git a/lib/l10n/app_zh.arb b/lib/l10n/app_zh.arb
index c941461..75de879 100644
--- a/lib/l10n/app_zh.arb
+++ b/lib/l10n/app_zh.arb
@@ -1568,5 +1568,6 @@
   "contacts_zeroHopContactAdvertSent": "通过广告获取联系方式。",
   "contacts_zeroHopContactAdvertFailed": "发送联系方式失败。",
   "contacts_contactAdvertCopied": "广告内容已复制到剪贴板。",
-  "contacts_contactAdvertCopyFailed": "将广告复制到剪贴板操作失败。"
+  "contacts_contactAdvertCopyFailed": "将广告复制到剪贴板操作失败。",
+  "pathTrace_someHopsNoLocation": "其中一个或多个啤酒花缺少位置！"
 }
diff --git a/lib/screens/channel_message_path_screen.dart b/lib/screens/channel_message_path_screen.dart
index 1646b73..d8a31fc 100644
--- a/lib/screens/channel_message_path_screen.dart
+++ b/lib/screens/channel_message_path_screen.dart
@@ -525,8 +525,8 @@ class _ChannelMessagePathMapScreenState
           ),
       Marker(
         point: LatLng(
-          context.read<MeshCoreConnector>().selfLatitude!,
-          context.read<MeshCoreConnector>().selfLongitude!,
+          context.read<MeshCoreConnector>().selfLatitude ?? 0.0,
+          context.read<MeshCoreConnector>().selfLongitude ?? 0.0,
         ),
         width: 40,
         height: 40,
diff --git a/lib/screens/path_trace_map.dart b/lib/screens/path_trace_map.dart
index b4b280d..e67c825 100644
--- a/lib/screens/path_trace_map.dart
+++ b/lib/screens/path_trace_map.dart
@@ -50,6 +50,7 @@ class _PathTraceMapScreenState extends State<PathTraceMapScreen> {
   bool _isLoading = false;
   bool _failed2Loaded = false;
   bool _hasData = false;
+  bool _noLocationErr = false;
   PathTraceData? _traceData;
   List<LatLng> _points = <LatLng>[];
   List<Polyline> _polylines = [];
@@ -108,6 +109,7 @@ class _PathTraceMapScreenState extends State<PathTraceMapScreen> {
       setState(() {
         _isLoading = true;
         _failed2Loaded = false;
+        _noLocationErr = false;
       });
     }
 
@@ -159,7 +161,8 @@ class _PathTraceMapScreenState extends State<PathTraceMapScreen> {
       }
 
       // Check if it's a binary response
-      if (code == pushCodeTraceData &&
+      if (frame.length > 8 &&
+          code == pushCodeTraceData &&
           listEquals(frame.sublist(4, 8), tagData)) {
         _timeoutTimer?.cancel();
         if (!mounted) return;
@@ -207,8 +210,13 @@ class _PathTraceMapScreenState extends State<PathTraceMapScreen> {
       _points.add(LatLng(connector.selfLatitude!, connector.selfLongitude!));
       for (final hop in _traceData!.pathData) {
         final contact = _traceData!.pathContacts[hop];
-        if (contact != null && contact.hasLocation) {
+        if (contact != null &&
+            contact.hasLocation &&
+            contact.latitude != null &&
+            contact.longitude != null) {
           _points.add(LatLng(contact.latitude!, contact.longitude!));
+        } else {
+          _noLocationErr = true;
         }
       }
       _polylines = _points.length > 1
@@ -271,7 +279,20 @@ class _PathTraceMapScreenState extends State<PathTraceMapScreen> {
             top: false,
             child: Stack(
               children: [
-                if (!_hasData)
+                if (_noLocationErr)
+                  Center(
+                    child: Card(
+                      color: Colors.red,
+                      child: Padding(
+                        padding: EdgeInsets.all(12),
+                        child: Text(
+                          context.l10n.pathTrace_someHopsNoLocation,
+                          style: TextStyle(color: Colors.white),
+                        ),
+                      ),
+                    ),
+                  ),
+                if (!_hasData && _noLocationErr)
                   Center(
                     child: Column(
                       mainAxisSize: MainAxisSize.min,
@@ -283,7 +304,7 @@ class _PathTraceMapScreenState extends State<PathTraceMapScreen> {
                       ],
                     ),
                   ),
-                if (_hasData)
+                if (_hasData && !_noLocationErr)
                   FlutterMap(
                     key: _mapKey,
                     options: MapOptions(
@@ -318,7 +339,8 @@ class _PathTraceMapScreenState extends State<PathTraceMapScreen> {
                 if (_points.isEmpty &&
                     !_hasData &&
                     !_isLoading &&
-                    !_failed2Loaded)
+                    !_failed2Loaded &&
+                    !_noLocationErr)
                   Center(
                     child: Card(
                       color: Colors.white.withValues(alpha: 0.9),
@@ -330,7 +352,8 @@ class _PathTraceMapScreenState extends State<PathTraceMapScreen> {
                       ),
                     ),
                   ),
-                if (_hasData) _buildLegendCard(context, _traceData!),
+                if (_hasData && !_noLocationErr)
+                  _buildLegendCard(context, _traceData!),
               ],
             ),
           ),