diff --git a/TBF/BenchControl/Output/FileWriters/IperlLogger/Writer.cs b/TBF/BenchControl/Output/FileWriters/IperlLogger/Writer.cs
index 986944b13..71879aafb 100644
--- a/TBF/BenchControl/Output/FileWriters/IperlLogger/Writer.cs
+++ b/TBF/BenchControl/Output/FileWriters/IperlLogger/Writer.cs
@@ -245,7 +245,7 @@ namespace TBF.BenchControl.Output.FileWriters.IperlLogger
                     Results.Entities.MeterTestRslt wm0r = wm0trs[j];
                     bool pb_100_110 = (testInfos[j].Range == Range.R100_110);
 
-                    if (wm0r != null)
+                    if ((wm0r != null) && !string.IsNullOrEmpty(fId))
                     {
                         logger.WriteLine(string.Format("Durchfluss{0}={1}",         fId, Units.ConvertTo(Unit.lph, (wm0r.Qfrom() + wm0r.Qto()) / 2).ToString("F1", Program.AltCulture)));
                         logger.WriteLine(string.Format("Prüfzeit{0}={1}",           fId, wm0r.TargetTime().ToString("F0")));
@@ -308,7 +308,7 @@ namespace TBF.BenchControl.Output.FileWriters.IperlLogger
                         {
                             wmtrs[j] = wMtr.GetMeterTestRslt(testInfos[j].TestName);
 
-                            if (wmtrs[j] == null && !string.IsNullOrEmpty(testInfos[j].TestName))
+                            if (wmtrs[j] == null && !string.IsNullOrEmpty(testInfos[j].PruefungsNrStr) && !string.IsNullOrEmpty(testInfos[j].TestName))
                             {
                                 testRsltIsMissing = true;   /// Missing test result for one of specified tests
                             }
diff --git a/TBF/Properties/AssemblyInfo.cs b/TBF/Properties/AssemblyInfo.cs
index 400725c4e..e2e2f0f3c 100644
--- a/TBF/Properties/AssemblyInfo.cs
+++ b/TBF/Properties/AssemblyInfo.cs
@@ -29,5 +29,5 @@ using System.Runtime.InteropServices;
 //      Build Number
 //      Revision
 //
-[assembly: AssemblyVersion("2.18.1171.0")]
-[assembly: AssemblyFileVersion("2.18.1171.0")]
+[assembly: AssemblyVersion("2.18.1172.0")]
+[assembly: AssemblyFileVersion("2.18.1172.0")]