diff --git a/PROMS/Volian.Print.Library/PDFConsistencyCheckReport.cs b/PROMS/Volian.Print.Library/PDFConsistencyCheckReport.cs
index f9418c7f..4967fabf 100644
--- a/PROMS/Volian.Print.Library/PDFConsistencyCheckReport.cs
+++ b/PROMS/Volian.Print.Library/PDFConsistencyCheckReport.cs
@@ -368,7 +368,10 @@ namespace Volian.Print.Library
 							string trtitle = "From Procedure " + newValue;
 							if (trs.ContainsKey(trtitle))
 							{
-								trs[trtitle].Add(string.Format("According to {0} the destination is: {1}", pi.DisplayNumber, ItemInfo.ConvertToDisplayText(trc.TransitionValue)), ItemInfo.ConvertToDisplayText(trc.TransitionValue) == fromText);
+								// B2021-024: : For Working Draft, Report All Procedures Inconsistencies gives Argument Exception in report
+								//		If the value is already in the dictionary, don't add it.
+								if (!trs[trtitle].ContainsValue(ItemInfo.ConvertToDisplayText(trc.TransitionValue) == fromText))
+									trs[trtitle].Add(string.Format("According to {0} the destination is: {1}", pi.DisplayNumber, ItemInfo.ConvertToDisplayText(trc.TransitionValue)), ItemInfo.ConvertToDisplayText(trc.TransitionValue) == fromText);
 							}
 							else
 							{