diff --git a/PROMS/VEPROMS.CSLA.Library/Extension/ItemExt.cs b/PROMS/VEPROMS.CSLA.Library/Extension/ItemExt.cs
index 031ece04..4b680ed0 100644
--- a/PROMS/VEPROMS.CSLA.Library/Extension/ItemExt.cs
+++ b/PROMS/VEPROMS.CSLA.Library/Extension/ItemExt.cs
@@ -805,7 +805,21 @@ namespace VEPROMS.CSLA.Library
 							}
  						}
 					}
-
+					// B2025-020 Null Reference fix. Added check for valid index into the TransitionTypeList
+					if (!forceConvertToText)
+					{
+						if (traninfo.TranType >= itemInfo.ActiveFormat.PlantFormat.FormatData.TransData.TransTypeList.Count)
+						{
+							forceConvertToText = true;
+							TranFixCount++;
+							itemInfo.MyContent.FixTransitionText(traninfo, itemInfo, "Reason for Change: Transition type is not available");
+							using (Content content = Content.Get(itemInfo.MyContent.ContentID)) 
+							{
+								content.FixTransitionText(traninfo, true);
+								content.Save();
+							}
+						}
+					}
 					if (!forceConvertToText)
 					{
 						if (itemInfo.MyProcedure.ItemID != traninfo.MyItemToID.MyProcedure.ItemID)  //different proc