diff --git a/PROMS/VEPROMS.CSLA.Library/Config/ROFSTLookup.cs b/PROMS/VEPROMS.CSLA.Library/Config/ROFSTLookup.cs
index 2eac4140..78a748fd 100644
--- a/PROMS/VEPROMS.CSLA.Library/Config/ROFSTLookup.cs
+++ b/PROMS/VEPROMS.CSLA.Library/Config/ROFSTLookup.cs
@@ -360,7 +360,7 @@ namespace VEPROMS.CSLA.Library
 				nextIDX = aplString.IndexOf(",UnitIdx", offsetIdx);
 				if (nextIDX == -1) nextIDX = aplString.IndexOf(" /APL>");
 				sb.Append(aplString.Substring(offsetIdx, nextIDX - offsetIdx));
-				lastIndex += m.Index + m.Length;
+				lastIndex = m.Index + m.Length; // B2022-032 don't do a += of lastIndex the m.Index is the true position in the roval string
 			}
 			if (lastIndex < roval.Length)
 				sb.Append(roval.Substring(lastIndex)); // B2022-018 append any remaining text