PROMS/VEPROMS.CSLA.Library/Extension/ItemExt.cs

@@ -2128,7 +2128,13 @@ namespace VEPROMS.CSLA.Library
 				string tbtoken = seqtabs[localPrintLevel % seqtabs.Count].TabToken;  // seqstart in 16bit, number/letter
 				tbformat = tbformat.Replace("{seq}", tbtoken);
 			}
-			
+			else
+				// reset the print level if it's not a sequential type.  The code was setting printlevel
+				// to a -1 for equipment lists, and if the step type was changed to a sequential, it kept the
+				// -1 (the printlevel property calculates the value only if the current value == 0, 
+				// so that when the above code ran to reset the tab, it would crash because the
+				// printlevel was not recalculated.
+				PrintLevel = 0;  
 			// If token includes 'Wpar', the parent tab prefix's the tab.
 			if (localPrintLevel > 0 && (tbformat.IndexOf("{numericWpar}") > -1 || tbformat.IndexOf("{alphaWpar}") > -1 || tbformat.IndexOf("{ALPHAWpar}") > -1))
 			{