Index: sources/gui/qml/components/RangeSlider.qml
===================================================================
diff -u -r278d2553ee91cff36b356bd2ff028ff4764ded60 -r0e1e685b6d5e0f837ed42a792f9099f78a018afa
--- sources/gui/qml/components/RangeSlider.qml	(.../RangeSlider.qml)	(revision 278d2553ee91cff36b356bd2ff028ff4764ded60)
+++ sources/gui/qml/components/RangeSlider.qml	(.../RangeSlider.qml)	(revision 0e1e685b6d5e0f837ed42a792f9099f78a018afa)
@@ -242,13 +242,31 @@
     }
 
     function setMinValue(vValue) {
-        minAdjusted = true
-        minValue    = vValue
+        // added an if block in case for the first time (not adjusted yet) the value is not changed (still on def value), to force the valueChanged emit.
+        if ( ! minAdjusted ) {
+            minAdjusted = true
+            if ( vValue == minValue )
+                minValueChanged(vValue)
+            else
+                minValue = vValue
+        }
+        else {
+            minValue     = vValue
+        }
     }
 
     function setMaxValue(vValue) {
-        maxAdjusted = true
-        maxValue    = vValue
+        // added an if block in case for the first time (not adjusted yet) the value is not changed (still on def value), to force the valueChanged emit.
+        if ( ! maxAdjusted ) {
+            maxAdjusted = true
+            if ( vValue == maxValue )
+                maxValueChanged(vValue)
+            else
+                maxValue = vValue
+        }
+        else {
+            maxValue     = vValue
+        }
     }
 
     // This is a helper function that will calculate and return a new value