Index: sources/gui/qml/pages/posttreatment/PostTreatmentReview.qml
===================================================================
diff -u -r86e9dfbff50cb7e16fd94c16c1c818cef3b47eac -r5e0731af5ae5e11d3981e4d3065a886975fb7fc3
--- sources/gui/qml/pages/posttreatment/PostTreatmentReview.qml	(.../PostTreatmentReview.qml)	(revision 86e9dfbff50cb7e16fd94c16c1c818cef3b47eac)
+++ sources/gui/qml/pages/posttreatment/PostTreatmentReview.qml	(.../PostTreatmentReview.qml)	(revision 5e0731af5ae5e11d3981e4d3065a886975fb7fc3)
@@ -40,13 +40,14 @@
         isSmall         : true
         anchors.top     : parent.top
         anchors.left    : parent.left
-        enabled         : vPostTreatmentAdjustmentTreatmentLog.isIdle && _GuiView.usbIsReady
+        enabled         : vPostTreatmentAdjustmentTreatmentLog.isIdle && _GuiView.usbIsReady && !_GuiView.exportRunning
         onClicked       : vPostTreatmentAdjustmentTreatmentLog.doExport()
     }
     USBButton { id: _usbButton
         anchors.top     : _exportButton.top
         anchors.left    : _exportButton.right
         anchors.leftMargin: Variables.minVGap
+        enabled         : ! _GuiView.exportRunning
     }
 
     ScrollBar {