Index: sources/gui/qml/pages/endtreatment/rinseback/EndTreatmentRinsebackComplete.qml
===================================================================
diff -u -r301c0a2101eb9374145ae274c8d91460fc9a6a62 -r86e9dfbff50cb7e16fd94c16c1c818cef3b47eac
--- sources/gui/qml/pages/endtreatment/rinseback/EndTreatmentRinsebackComplete.qml	(.../EndTreatmentRinsebackComplete.qml)	(revision 301c0a2101eb9374145ae274c8d91460fc9a6a62)
+++ sources/gui/qml/pages/endtreatment/rinseback/EndTreatmentRinsebackComplete.qml	(.../EndTreatmentRinsebackComplete.qml)	(revision 86e9dfbff50cb7e16fd94c16c1c818cef3b47eac)
@@ -35,7 +35,7 @@
     title.text              : qsTr("Rinseback Complete")
     instructionBased        : true
     header.confirmVisible   : vTreatmentTime        .time_IsLeft
-    header.confirmEnabled   : vTreatmentRinseback   .isCompleted
+    header.confirmEnabled   : vTreatmentRinseback   .isCompleted      && _root.instructionIsLast
     hasTimeout              : vTreatmentRinseback   .timeoutTotal
     timeoutValue            : vTreatmentRinseback   .timeoutCountDown * 60