Use showIndicator property to set correct visibility in loader. This leads to correct spacing on all platforms.

src/ui/toolbar/ArmedIndicator.qml

@@ -28,6 +28,8 @@ QGCComboBox {
     currentIndex:   -1
     sizeToContents: true
 
+    property bool showIndicator: true
+
     property var    _activeVehicle: QGroundControl.multiVehicleManager.activeVehicle
     property bool   _armed:         _activeVehicle ? _activeVehicle.armed : false
 

src/ui/toolbar/BatteryIndicator.qml

@@ -24,6 +24,8 @@ Item {
     anchors.bottom: parent.bottom
     width:          batteryIndicatorRow.width
 
+    property bool showIndicator: true
+
     function getBatteryColor() {
         if(activeVehicle) {
             if(activeVehicle.battery.percentRemaining.value > 75) {

src/ui/toolbar/GPSIndicator.qml

@@ -24,6 +24,8 @@ Item {
     anchors.top:    parent.top
     anchors.bottom: parent.bottom
 
+    property bool showIndicator: true
+
     Component {
         id: gpsInfo
 

src/ui/toolbar/GPSRTKIndicator.qml

@@ -19,10 +19,11 @@ import QGroundControl.Palette               1.0
 //-- GPS Indicator
 Item {
     id:             _root
-    width:          visible ? (gpsValuesColumn.x + gpsValuesColumn.width) * 1.1 : 0
+    width:          (gpsValuesColumn.x + gpsValuesColumn.width) * 1.1
     anchors.top:    parent.top
     anchors.bottom: parent.bottom
-    visible:        QGroundControl.gpsRtk.connected.value
+
+    property bool showIndicator: QGroundControl.gpsRtk.connected.value
 
     Component {
         id: gpsInfo

src/ui/toolbar/LinkIndicator.qml

@@ -23,10 +23,9 @@ import QGroundControl.Vehicle               1.0
 Item {
     anchors.top:    parent.top
     anchors.bottom: parent.bottom
-    width:          visible ? priorityLinkSelector.width : 0
+    width:          priorityLinkSelector.width
-    visible:        _visible
 
-    property bool _visible: false
+    property bool showIndicator: false
 
     QGCLabel {
         id:                     priorityLinkSelector
@@ -66,7 +65,7 @@ Item {
                     }
                 }
 
-                _visible = links.length > 1 && has_hl
+                showIndicator = links.length > 1 && has_hl
             }
         }
 

src/ui/toolbar/MainToolBarIndicators.qml

@@ -84,10 +84,12 @@ Item {
         Repeater {
             model:      activeVehicle ? activeVehicle.toolBarIndicators : []
             Loader {
+                id:                 indicatorLoader
                 anchors.top:        parent.top
                 anchors.bottom:     parent.bottom
                 anchors.margins:    ScreenTools.defaultFontPixelHeight * 0.66
-                source:             modelData;
+                source:             modelData
+                visible:            item.showIndicator
             }
         }
     }

src/ui/toolbar/MessageIndicator.qml

@@ -25,6 +25,8 @@ Item {
     anchors.top:    parent.top
     anchors.bottom: parent.bottom
 
+    property bool showIndicator: true
+
     property bool _isMessageImportant:    activeVehicle ? !activeVehicle.messageTypeNormal && !activeVehicle.messageTypeNone : false
 
     function getMessageColor() {

src/ui/toolbar/ModeIndicator.qml

@@ -28,6 +28,8 @@ QGCComboBox {
     currentIndex:   -1
     sizeToContents: true
 
+    property bool showIndicator: true
+
     property var _activeVehicle:    QGroundControl.multiVehicleManager.activeVehicle
     property var _flightModes:      _activeVehicle ? _activeVehicle.flightModes : [ ]
 

src/ui/toolbar/MultiVehicleSelector.qml

@@ -26,7 +26,8 @@ QGCComboBox {
     currentIndex:   -1
     sizeToContents: true
     model:          _vehicleModel
-    visible:        _multipleVehicles
+
+    property bool showIndicator: _multipleVehicles
 
     property var    _activeVehicle:     QGroundControl.multiVehicleManager.activeVehicle
     property bool   _multipleVehicles:  _activeVehicle ? QGroundControl.multiVehicleManager.vehicles.count > 1 : false

src/ui/toolbar/RCRSSIIndicator.qml

@@ -23,8 +23,10 @@ Item {
     width:          rssiRow.width * 1.1
     anchors.top:    parent.top
     anchors.bottom: parent.bottom
-    visible:        activeVehicle ? activeVehicle.supportsRadio : true
 
+    property bool showIndicator: _activeVehicle.supportsRadio
+
+    property var    _activeVehicle:     QGroundControl.multiVehicleManager.activeVehicle
     property bool   _rcRSSIAvailable:   activeVehicle ? activeVehicle.rcRSSI > 0 && activeVehicle.rcRSSI <= 100 : false
 
     Component {

src/ui/toolbar/TelemetryRSSIIndicator.qml

@@ -22,10 +22,12 @@ Item {
     id:             _root
     anchors.top:    parent.top
     anchors.bottom: parent.bottom
-    width:          _hasTelemetry ? telemIcon.width * 1.1 : 0
+    width:          telemIcon.width * 1.1
-    visible:        _hasTelemetry
 
-    property bool _hasTelemetry:    activeVehicle ? activeVehicle.telemetryLRSSI !== 0 : false
+    property bool showIndicator: _hasTelemetry
+
+    property var  _activeVehicle:   QGroundControl.multiVehicleManager.activeVehicle
+    property bool _hasTelemetry:    _activeVehicle ? _activeVehicle.telemetryLRSSI !== 0 : false
 
     Component {
         id: telemRSSIInfo

src/ui/toolbar/VTOLModeIndicator.qml

@@ -26,10 +26,12 @@ QGCLabel {
     text:               _fwdFlight ? qsTr("VTOL: Fixed Wing") : qsTr("VTOL: Multi-Rotor")
     font.pointSize:     ScreenTools.mediumFontPointSize
     color:              qgcPal.buttonText
-    visible:            activeVehicle ? activeVehicle.vtol && activeVehicle.px4Firmware : false
+    width:              implicitWidth
-    width:              visible ? implicitWidth : 0
 
-    property bool _fwdFlight: activeVehicle ? activeVehicle.vtolInFwdFlight : false
+    property bool showIndicator: _activeVehicle.vtol && _activeVehicle.px4Firmware
+
+    property var  _activeVehicle:   QGroundControl.multiVehicleManager.activeVehicle
+    property bool _fwdFlight:       _activeVehicle.vtolInFwdFlight
 
     QGCMouseArea {
         fillItem: parent