diff --git a/PROMS/ReferencedObjects/LibSource/ctlXMLEditLib/ctlXMLEdit.cs b/PROMS/ReferencedObjects/LibSource/ctlXMLEditLib/ctlXMLEdit.cs
index 95beb6ce..4484671f 100644
--- a/PROMS/ReferencedObjects/LibSource/ctlXMLEditLib/ctlXMLEdit.cs
+++ b/PROMS/ReferencedObjects/LibSource/ctlXMLEditLib/ctlXMLEdit.cs
@@ -1220,6 +1220,11 @@ namespace ctlXMLEditLib
 					mytextbox.Enter += new System.EventHandler(this.txtBox_Enter);
 					mytextbox.Leave += new System.EventHandler(this.txtBox_Leave);
 				}
+				else
+				{
+                    //B2026-085 Disable Symbols when leave a TextBox
+                    mytextbox.Leave += txtBox_Leave_DisableSymbols;
+                }
 
 				string labelAnnot;
 				bool imgchld = false;
@@ -1311,7 +1316,12 @@ namespace ctlXMLEditLib
 				tb.Text = dfTxt;
 				tb.ForeColor = SystemColors.GrayText;
 			}
-		}
+
+			txtBox_Leave_DisableSymbols(sender, e);
+        }
+
+        //B2026-085 Disable Symbols when leave a TextBox
+        private void txtBox_Leave_DisableSymbols(object sender, EventArgs e) => OnEnableDisableSymbolsBtn(new ctlXMLEditEventArgs(DisplaySymBolBtn:false));
 
 		// C2021-026 Event handler for Parent/Child child textbox
 		//           If the textbox is set to gray, then we are using the parent value