Index: sources/gui/qml/pages/posttreatment/PostTreatmentStack.qml
===================================================================
diff -u -r18e4634800357ac1d8bc1da1cad04836ba85d33c -r627062628b60e4d512ee8830c2dbc23eef02fe28
--- sources/gui/qml/pages/posttreatment/PostTreatmentStack.qml	(.../PostTreatmentStack.qml)	(revision 18e4634800357ac1d8bc1da1cad04836ba85d33c)
+++ sources/gui/qml/pages/posttreatment/PostTreatmentStack.qml	(.../PostTreatmentStack.qml)	(revision 627062628b60e4d512ee8830c2dbc23eef02fe28)
@@ -136,6 +136,12 @@
 
         subStepIndex    : isDisconnect ? _postTreatmentDisconnectStack.subStepIndex + 1 : 0
 
+        currentStep    :  {
+            let arr =Array(stepNames.length).fill(false)
+            arr[PostTreatmentStack.Disconnect] = isDisconnect
+            return arr
+        }
+
         subSteps        : {
             let arr =Array(stepNames.length).fill(0)
             arr[ PostTreatmentStack.Disconnect] = PostTreatmentDisconnectStack.Step.Count
@@ -191,7 +197,7 @@
 
     PostTreatmentBase { id:  _postTreatmentDisinfection
         objectName          :" _postTreatmentDisinfection"
-        onVisibleChanged    :  if (visible) { stackStepIndex = PostTreatmentStack.Disinfection }
+        onVisibleChanged    :  if (visible) { stackStepIndex = PostTreatmentStack.Disinfection                  }
     }
 
     // connections