diff --git a/dynawo-integration-tests/src/test/java/com/powsybl/dynawo/it/DynawoSimulationTest.java b/dynawo-integration-tests/src/test/java/com/powsybl/dynawo/it/DynawoSimulationTest.java
index 2281d2dbe..9d18241ed 100644
--- a/dynawo-integration-tests/src/test/java/com/powsybl/dynawo/it/DynawoSimulationTest.java
+++ b/dynawo-integration-tests/src/test/java/com/powsybl/dynawo/it/DynawoSimulationTest.java
@@ -72,7 +72,7 @@ void testIeee14() {
         assertEquals(27, result.getCurves().size());
         DoubleTimeSeries ts1 = result.getCurve("_GEN____1_SM_generator_UStatorPu");
         assertEquals("_GEN____1_SM_generator_UStatorPu", ts1.getMetadata().getName());
-        assertEquals(585, ts1.toArray().length);
+        assertEquals(192, ts1.toArray().length);
         assertEquals(14, result.getFinalStateValues().size());
         assertEquals(1.046227, result.getFinalStateValues().get("NETWORK__BUS___10_TN_Upu_value"));
         List<TimelineEvent> timeLine = result.getTimeLine();
diff --git a/dynawo-simulation/src/main/java/com/powsybl/dynawo/DynawoSimulationHandler.java b/dynawo-simulation/src/main/java/com/powsybl/dynawo/DynawoSimulationHandler.java
index a578dd973..abd1c71e8 100644
--- a/dynawo-simulation/src/main/java/com/powsybl/dynawo/DynawoSimulationHandler.java
+++ b/dynawo-simulation/src/main/java/com/powsybl/dynawo/DynawoSimulationHandler.java
@@ -27,10 +27,7 @@
 import com.powsybl.dynawo.commons.timeline.XmlTimeLineParser;
 import com.powsybl.iidm.network.Network;
 import com.powsybl.iidm.serde.NetworkSerDe;
-import com.powsybl.timeseries.DoubleTimeSeries;
-import com.powsybl.timeseries.TimeSeries;
-import com.powsybl.timeseries.TimeSeriesConstants;
-import com.powsybl.timeseries.TimeSeriesCsvConfig;
+import com.powsybl.timeseries.*;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -63,8 +60,8 @@ public final class DynawoSimulationHandler extends AbstractExecutionHandler<Dyna
     private final ReportNode reportNode;
 
     private final List<TimelineEvent> timeline = new ArrayList<>();
-    private final Map<String, DoubleTimeSeries> curves = new HashMap<>();
-    private final Map<String, Double> fsv = new HashMap<>();
+    private final Map<String, DoubleTimeSeries> curves = new LinkedHashMap<>();
+    private final Map<String, Double> fsv = new LinkedHashMap<>();
     private DynamicSimulationResult.Status status = DynamicSimulationResult.Status.SUCCESS;
     private String statusText = "";
 
@@ -186,7 +183,7 @@ private void setCurves(Path workingDir) {
         Path curvesPath = workingDir.resolve(CURVES_OUTPUT_PATH).resolve(CURVES_FILENAME);
         if (Files.exists(curvesPath)) {
             TimeSeries.parseCsv(curvesPath, new TimeSeriesCsvConfig(TimeSeriesConstants.DEFAULT_SEPARATOR, false, TimeSeries.TimeFormat.FRACTIONS_OF_SECOND))
-                    .values().forEach(l -> l.forEach(curve -> curves.put(curve.getMetadata().getName(), (DoubleTimeSeries) curve)));
+                    .values().forEach(l -> l.forEach(curve -> curves.put(curve.getMetadata().getName(), sanitizeDoubleTimeSeries((DoubleTimeSeries) curve))));
         } else {
             LOGGER.warn("Curves folder not found");
             status = DynamicSimulationResult.Status.FAILURE;
@@ -194,6 +191,14 @@ private void setCurves(Path workingDir) {
         }
     }
 
+    private DoubleTimeSeries sanitizeDoubleTimeSeries(DoubleTimeSeries series) {
+        Set<Long> times = new LinkedHashSet<>();
+        double[] values = series.stream().filter(dp -> times.add(dp.getTime())).mapToDouble(DoublePoint::getValue).toArray();
+        return TimeSeries.createDouble(series.getMetadata().getName(),
+                new IrregularTimeSeriesIndex(times.stream().mapToLong(l -> l).toArray()),
+                values);
+    }
+
     private void setFinalStateValues(Path workingDir) {
         Path fsvPath = workingDir.resolve(FSV_OUTPUT_PATH).resolve(FSV_OUTPUT_FILENAME);
         if (Files.exists(fsvPath)) {