Index: DamEngine/trunk/src/Deltares.DamEngine.Calculators/KernelWrappers/MacroStabilityCommon/MacroStabilityIo/FillMacroStabilityWrapperInputFromEngine.cs
===================================================================
diff -u -r5662 -r5670
--- DamEngine/trunk/src/Deltares.DamEngine.Calculators/KernelWrappers/MacroStabilityCommon/MacroStabilityIo/FillMacroStabilityWrapperInputFromEngine.cs	(.../FillMacroStabilityWrapperInputFromEngine.cs)	(revision 5662)
+++ DamEngine/trunk/src/Deltares.DamEngine.Calculators/KernelWrappers/MacroStabilityCommon/MacroStabilityIo/FillMacroStabilityWrapperInputFromEngine.cs	(.../FillMacroStabilityWrapperInputFromEngine.cs)	(revision 5670)
@@ -400,6 +400,11 @@
             GridZTop = BishopCalculationGrid.GridZTop,
             GridZBottom = BishopCalculationGrid.GridZBottom
         };
+        
+        if (!BishopCalculationGrid.IsTangentLinesAutomatic)
+        {
+            kernelBishopCalculationCircle.TangentLines = BishopCalculationGrid.TangentLineLevels.ToArray();
+        }
     }
 
     private void TransferUpliftVanCalculationGrid(KernelUpliftVanCalculationGrid kernelUpliftVanCalculationGrid)
@@ -433,6 +438,11 @@
             GridZTop = UpliftVanCalculationGrid.RightGridZTop,
             GridZBottom = UpliftVanCalculationGrid.RightGridZBottom
         };
+        
+        if (!UpliftVanCalculationGrid.IsTangentLinesAutomatic)
+        {
+            kernelUpliftVanCalculationGrid.TangentLines = UpliftVanCalculationGrid.TangentLineLevels.ToArray();
+        }
     }
 
     private void TransferUniformLoads(TrafficLoad damTrafficLoad, ICollection<UniformLoad> kernelUniformLoads)