From fcdb148e00dde5d6b97f6482eeed2b293a1eb150 Mon Sep 17 00:00:00 2001
From: Paul Hebble <pjhebble@gmail.com>
Date: Sun, 10 May 2020 21:16:51 +0000
Subject: [PATCH] Ignore IndexOutOfRangeException when clearing nodes

---
 src/KerbalTools.cs | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/src/KerbalTools.cs b/src/KerbalTools.cs
index 6e35221..90114b5 100644
--- a/src/KerbalTools.cs
+++ b/src/KerbalTools.cs
@@ -1,3 +1,4 @@
+using System;
 using System.Linq;
 using KSP;
 
@@ -286,8 +287,16 @@ public static Orbit NextPatch(Orbit currentPatch)
 		public static void ClearManeuverNodes()
 		{
 			PatchedConicSolver solver = FlightGlobals.ActiveVessel.patchedConicSolver;
-			while (solver.maneuverNodes.Count > 0) {
-				solver.maneuverNodes.First().RemoveSelf();
+			try
+			{
+				while (solver.maneuverNodes.Count > 0) {
+					solver.maneuverNodes.First().RemoveSelf();
+				}
+			}
+			catch (IndexOutOfRangeException)
+			{
+				// This can be thrown if another thread clears it before us.
+				// *Shrug*
 			}
 		}