Index: Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Service/MacroStabilityInwardsCalculationService.cs
===================================================================
diff -u -r7822834024ae12c82ec93ba3f57556cb4a503296 -rcf7e0b124334ae558a5d8dee4fc515577d5f6f25
--- Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Service/MacroStabilityInwardsCalculationService.cs	(.../MacroStabilityInwardsCalculationService.cs)	(revision 7822834024ae12c82ec93ba3f57556cb4a503296)
+++ Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Service/MacroStabilityInwardsCalculationService.cs	(.../MacroStabilityInwardsCalculationService.cs)	(revision cf7e0b124334ae558a5d8dee4fc515577d5f6f25)
@@ -81,7 +81,7 @@
                                                                                                         msg.Message)).ToArray());
             CalculationServiceHelper.LogValidationEnd();
 
-            return validationResults.Count(r => r.ResultType == UpliftVanValidationResultType.Error) == 0;
+            return validationResults.All(r => r.ResultType != UpliftVanValidationResultType.Error);
         }
 
         /// <summary>