diff --git a/agrolib/graphics/mapGraphicsRasterUtm.cpp b/agrolib/graphics/mapGraphicsRasterUtm.cpp
index 6722cc945..73d23b474 100644
--- a/agrolib/graphics/mapGraphicsRasterUtm.cpp
+++ b/agrolib/graphics/mapGraphicsRasterUtm.cpp
@@ -53,11 +53,10 @@ void RasterUtmObject::clear()
 
     _rasterPointer = nullptr;
     _colorLegendPointer = nullptr;
+    isLoaded = false;
 
     _utmZone = NODATA;
     _refCenterPixel = QPointF(NODATA, NODATA);
-
-    isLoaded = false;
 }
 
 
diff --git a/agrolib/project/project.cpp b/agrolib/project/project.cpp
index 74bb1f1af..142590198 100644
--- a/agrolib/project/project.cpp
+++ b/agrolib/project/project.cpp
@@ -1002,7 +1002,8 @@ bool Project::loadDEM(QString myFileName)
     setColorScale(noMeteoTerrain, DEM.colorScale);
 
     // initialize radiation maps (slope, aspect, lat/lon, transmissivity, etc.)
-    if (radiationMaps != nullptr) radiationMaps->clear();
+    if (radiationMaps != nullptr)
+        radiationMaps->clear();
     radiationMaps = new Crit3DRadiationMaps(DEM, gisSettings);
 
     // initialize hourly meteo maps
@@ -1707,6 +1708,7 @@ QDateTime Project::findDbPointFirstTime()
     return firstTime;
 }
 
+
 void Project::checkMeteoPointsDEM()
 {
     for (int i=0; i < nrMeteoPoints; i++)
diff --git a/bin/CRITERIA3D/mainwindow.cpp b/bin/CRITERIA3D/mainwindow.cpp
index ec22dcc1e..5c681cdd5 100644
--- a/bin/CRITERIA3D/mainwindow.cpp
+++ b/bin/CRITERIA3D/mainwindow.cpp
@@ -666,8 +666,8 @@ void MainWindow::drawProject()
 
 void MainWindow::clearMaps_GUI()
 {
-    rasterDEM->clear();
     rasterOutput->clear();
+    rasterDEM->clear();
 
     ui->labelInputRaster->setText("");
     ui->labelOutputRaster->setText("");
@@ -789,7 +789,6 @@ void MainWindow::on_timeEdit_valueChanged(int myHour)
 }
 
 
-
 void MainWindow::on_actionLoad_DEM_triggered()
 {
     QString fileName = QFileDialog::getOpenFileName(this, tr("Open Digital Elevation Model"), "",
@@ -797,17 +796,14 @@ void MainWindow::on_actionLoad_DEM_triggered()
 
     if (fileName == "") return;
 
-    rasterDEM->setDrawing(false);
-    rasterOutput->setDrawing(false);
+    clearMaps_GUI();
 
     if (! myProject.loadDEM(fileName)) return;
 
-    rasterDEM->setDrawing(true);
-    rasterOutput->setDrawing(true);
-
-    this->renderDEM();
+    renderDEM();
 }
 
+
 void MainWindow::on_actionOpenProject_triggered()
 {
     QString projectPath = myProject.getDefaultPath() + PATH_PROJECT;