Index: sources/gui/qml/pages/treatment/TreatmentTrends.qml
===================================================================
diff -u -rbae1ae230d8b41f90b1fcd34b9bccdfa87bf3cd9 -r83f808d0f503ea847c27c1fbc65c2b95d2e5d6b0
--- sources/gui/qml/pages/treatment/TreatmentTrends.qml	(.../TreatmentTrends.qml)	(revision bae1ae230d8b41f90b1fcd34b9bccdfa87bf3cd9)
+++ sources/gui/qml/pages/treatment/TreatmentTrends.qml	(.../TreatmentTrends.qml)	(revision 83f808d0f503ea847c27c1fbc65c2b95d2e5d6b0)
@@ -412,11 +412,11 @@
                         }
                         ValueText { id: _ufVolumeRemovedValue
                             objectName  : "_ufVolumeRemovedValue"
-                            value       : ufVolumeRemoved.toFixed(Variables.ultrafiltrationPrecision) ?? "--"
+                            value       : ufVolumeRemoved ? ufVolumeRemoved.toFixed(Variables.ultrafiltrationPrecision) : "--"
                         }
                         ValueText { id: _ufRateValue
                             objectName  : "_ufRateValue"
-                            value       : ufRate.toFixed(Variables.ultrafiltrationPrecision) ?? "--"
+                            value       : ufRate ? ufRate.toFixed(Variables.ultrafiltrationPrecision) : "--"
                         }
                         ValueText { id: _arterialPressureValue
                             objectName  : "_arterialPressureValue"
@@ -436,19 +436,19 @@
                         }
                         ValueText { id: _bloodFlowRateValue
                             objectName  : "_bloodFlowRateValue"
-                            value       : bloodFlowRate.toFixed(Variables.bloodFlowPrecision) ?? "--"
+                            value       : bloodFlowRate ? bloodFlowRate.toFixed(Variables.bloodFlowPrecision) : "--"
                         }
                         ValueText { id: _dialysateFlowRateValue
                             objectName  : "_dialysateFlowRateValue"
-                            value       : dialysateFlowRate.toFixed(Variables.dialysateFlowPrecision) ?? "--"
+                            value       : dialysateFlowRate ? dialysateFlowRate.toFixed(Variables.dialysateFlowPrecision) : "--"
                         }
                         ValueText { id: _dialysateTemperatureValue
                             objectName  : "_dialysateTemperatureValue"
-                            value       : dialysateTemperature.toFixed(Variables.dialysateTempPrecision) ?? "--"
+                            value       : dialysateTemperature ? dialysateTemperature.toFixed(Variables.dialysateTempPrecision) : "--"
                         }
                         ValueText { id: _conductivityValue
                             objectName  : "_conductivityValue"
-                            value       : conductivity.toFixed(Variables.dialysateCondPrecision) ?? "--"
+                            value       : conductivity ? conductivity.toFixed(Variables.dialysateCondPrecision) : "--"
                             showDivider : false
                         }
                     }