oxyplot · VisualMelon · May 14, 2023 · Mar 30, 2023 · Mar 30, 2023 · May 14, 2023
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -13,6 +13,7 @@ All notable changes to this project will be documented in this file.

 ### Fixed
 - Placement of BarSeries labels when stacked (#1979)
+- SystemInvalidException in LineSeries when only Double.Nan values are added (#1991)
 - Issue with tracking AreaSeries with monotonic data points (#1982)

 ## [2.1.2] - 2022-12-03

diff --git a/CONTRIBUTORS b/CONTRIBUTORS
@@ -111,6 +111,7 @@ Piotr Warzocha <pw@piootr.pl>
 Poul Erik Venø <poulerikvenoehansen@gmail.com>
 Régis Boudin <regis@boudin.name>
 Rik Borger <isolocis@gmail.com>
+Rok Lampret <rlamp@users.noreply.github.com>
 ryang <decatf@gmail.com>
 Sarah Müller <sy-mueller@gmx-topmail.de>
 Senen Fernandez <senenf@gmail.com>

diff --git a/Source/OxyPlot/Series/LineSeries.cs b/Source/OxyPlot/Series/LineSeries.cs
@@ -410,7 +410,7 @@ protected internal override void UpdateMaxMin()
                // Make sure the smooth points are re-evaluated.
                this.ResetSmoothedPoints();

-                if (this.SmoothedPoints.Count == 0)
+                if (this.SmoothedPoints.All(x => double.IsNaN(x.X)))
                {
                    return;
                }