diff --git a/EliteBGS/MainWindow.xaml.cs b/EliteBGS/MainWindow.xaml.cs
index 7d546a8..997c99a 100644
--- a/EliteBGS/MainWindow.xaml.cs
+++ b/EliteBGS/MainWindow.xaml.cs
@@ -68,11 +68,12 @@ public partial class MainWindow : Window {
             TransactionParser parser = new TransactionParser();
             List<Transaction> transactions = parser.Parse(entries);
 
+            List<IncompleteTransaction> incompletes = transactions.OfType<IncompleteTransaction>().ToList();
             // Log incomplete and remove them from the results.
-            foreach (var incomplete in transactions.OfType<IncompleteTransaction>()) {
+            foreach (var incomplete in incompletes) {
                 Log(incomplete.Reason);
-                transactions.Remove(incomplete);
             }
+            transactions.RemoveAll(x => incompletes.Contains(x));
 
             report = new Report(transactions);
             this.entries.ItemsSource = report.Objectives;