Index: sources/gui/qml/pages/posttreatment/PostTreatmentReview.qml
===================================================================
diff -u -r54c4136d95375116e6daf23b7d4179159cf13d0c -rfec49d1a8016d25cedff4cf2fefb4c4cd1c7c259
--- sources/gui/qml/pages/posttreatment/PostTreatmentReview.qml	(.../PostTreatmentReview.qml)	(revision 54c4136d95375116e6daf23b7d4179159cf13d0c)
+++ sources/gui/qml/pages/posttreatment/PostTreatmentReview.qml	(.../PostTreatmentReview.qml)	(revision fec49d1a8016d25cedff4cf2fefb4c4cd1c7c259)
@@ -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.usbIsReady && !_GuiView.exportRunning
     }
 
     ScrollBar {