diff --git a/Results/Forms/MoreWMResultsDlg.cs b/Results/Forms/MoreWMResultsDlg.cs
index 91cb5dfbc..bda644bbc 100644
--- a/Results/Forms/MoreWMResultsDlg.cs
+++ b/Results/Forms/MoreWMResultsDlg.cs
@@ -146,13 +146,13 @@ namespace Results.Forms
                     tracingResultsListView.Items.Add(new ListViewItem(new string[]
                     {
                         rr.TimeStamp.ToString("dd.MM.yyyy  HH:mm"),
-                        rr.Workstep.Name,
+                        (rr.Workstep != null) ? rr.Workstep.Name : string.Empty,
                         rr.Workplace,
                         rr.UserName,
                         rr.Result == 0 ? "OK" : "NOK",
-                        rr.Workstep.ReferencePart.Name,
+                        (rr.Workstep != null && rr.Workstep.ReferencePart != null) ? rr.Workstep.ReferencePart.Name : string.Empty,
                         rr.Code,
-                        rr.Process.Name,
+                        (rr.Process != null) ? rr.Process.Name : string.Empty,
                     }));
 
                     for (int i = 0; i < isMissing.Length; i++)
diff --git a/TBF/UI/ResultsMI/ResultsTabPageCtrl.cs b/TBF/UI/ResultsMI/ResultsTabPageCtrl.cs
index 500ff040d..068748e24 100644
--- a/TBF/UI/ResultsMI/ResultsTabPageCtrl.cs
+++ b/TBF/UI/ResultsMI/ResultsTabPageCtrl.cs
@@ -327,17 +327,20 @@ namespace TBF.UI.ResultsMI
         ///
         void OnDoubleClick(object sender, WaterMeterEventArgs args)
         {
-            int waterMetersCount = TBF.BenchControl.Sequences.ProcessData.BatchRslts.Batch.WaterMeters.Count;
-
-            WaterMeter wm;
-            if ((args.WMPosition <= 0) || (args.WMPosition > waterMetersCount) ||
-                ((wm = TBF.BenchControl.Sequences.ProcessData.BatchRslts.Batch.WaterMeters[args.WMPosition - 1]) == null))
+            if (TBF.BenchControl.Sequences.ProcessData.BatchRslts.Batch != null &&
+                TBF.BenchControl.Sequences.ProcessData.BatchRslts.Batch.WaterMeters != null)
             {
-                MessageBox.Show(Strings.No_water_meter);
-                return;
+                foreach (var wm in TBF.BenchControl.Sequences.ProcessData.BatchRslts.Batch.WaterMeters)
+                {
+                    if (wm.WMPosition == args.WMPosition)
+                    {
+                        ShowMoreWMResults(wm);
+                        return;
+                    }
+                }
             }
 
-            ShowMoreWMResults(wm);
+            MessageBox.Show(Strings.No_water_meter);
         }
 
 
@@ -567,7 +570,7 @@ namespace TBF.UI.ResultsMI
                             /// 
                             foreach (var rec in refR.Records)
                             {
-                                if (rec.Part.OraDBType.ToLower().Contains("flowtube"))
+                                if (!string.IsNullOrEmpty(rec.Part.OraDBType) && rec.Part.OraDBType.ToLower().Contains("flowtube"))
                                 {
                                     /// rec.Part is a flowtube
                                     /// 
@@ -576,6 +579,7 @@ namespace TBF.UI.ResultsMI
                                                                                 .OrderBy(x => x.TimeStamp).Desc
                                                                                 .List();
                                     foreach (var rr in flowtubeRRs) refRecords.Add(rr);
+                                    break;
                                 }
                             }
                         }