diff --git a/PROMS/VEPROMS User Interface/frmVEPROMS.cs b/PROMS/VEPROMS User Interface/frmVEPROMS.cs
index 4838ce7b..57d0e144 100644
--- a/PROMS/VEPROMS User Interface/frmVEPROMS.cs	
+++ b/PROMS/VEPROMS User Interface/frmVEPROMS.cs	
@@ -2022,6 +2022,9 @@ namespace VEPROMS
 			if (ii != null)
 			{
 				DisplayTabItem dti = tc.OpenItem(ii);// B2018-035 Allow procedure to be printed and property grid to be opened
+                // B2019-003: was crashing if another user was in same procedure (dti would have been null because procedure could not be opened):
+                if (dti == null) return;  
+
 				SelectedStepTabPanel = dti.MyStepTabPanel;
 				tc.SelectedDisplayTabItem = dti;
 				dti.SelectedItemInfo = ii;