diff --git a/PROMS/VEPROMS.CSLA.Library/Extension/DocumentExt.cs b/PROMS/VEPROMS.CSLA.Library/Extension/DocumentExt.cs
index 29edb2f4..05244db9 100644
--- a/PROMS/VEPROMS.CSLA.Library/Extension/DocumentExt.cs
+++ b/PROMS/VEPROMS.CSLA.Library/Extension/DocumentExt.cs
@@ -1724,7 +1724,9 @@ namespace VEPROMS.CSLA.Library
 					return null;
 				// B2019-123  Word 2019 returns true when find string was not found
 				// This line checks to make sure an RO was found.
-				if (!_ROAccPageTokenPattern.IsMatch(sel.Text))
+				// B2019-138 Word section fails during RO Replacement
+				// Calvert Cliffs/Working Draft Procedures/OI Procedures - Unit 1 - OI-43C.SATTACHMENT 1
+				if (sel.End != 0 && !_ROAccPageTokenPattern.IsMatch(sel.Text))
 					return null;
 				// MS Word found 'invalid' ro when text had "[335.0<T<335.6:C]" (not sure what problem was). 
 				// When this occurred, the selection was found, but it's end = 0, so move 1 char past it.