Добавил дополнительное логирование для отслеживания дублей.

src/Nocr.TelegramListener.AppServices/UpdateListeners/Handlers/Implementation/UpdateHandler.cs

@@ -45,6 +45,9 @@ public sealed class UpdateHandler(
 
     private async Task HandleMessage(MessageBase messageBase, bool edit = false)
     {
+        _logger.LogDebug("HandleMessage called for {MessageType} with ID {MessageId}, edit={Edit}",
+            messageBase.GetType().Name, messageBase.ID, edit);
+
         switch (messageBase)
         {
             case Message m:

src/Nocr.TelegramListener.AppServices/UpdateListeners/UpdateListenerBackgroundService.cs

@@ -71,8 +71,12 @@ public sealed class UpdateListenerBackgroundService : BackgroundService
     {
         using var scope = _serviceProvider.CreateScope();
         var updateHandler = scope.ServiceProvider.GetRequiredService<IUpdateHandler>();
+
+        _logger.LogDebug("Received {UpdateType} with {Count} updates", updates.GetType().Name, updates.UpdateList.Length);
+
         foreach (var update in updates.UpdateList)
         {
+            _logger.LogDebug("Processing update {UpdateType} (ID: {UpdateId})", update.GetType().Name, update.GetType().GetProperty("ID")?.GetValue(update) ?? "N/A");
             await updateHandler.HandleUpdate(update);
         }
     }