From 7706372a7a38183a5717bf3106c2d6723139cb7f Mon Sep 17 00:00:00 2001
From: Emiliana <38952746+emilianavt@users.noreply.github.com>
Date: Fri, 28 Feb 2020 20:34:39 +0100
Subject: [PATCH] This fixes exceptions with network tracking.

---
 Unity/OpenSee.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Unity/OpenSee.cs b/Unity/OpenSee.cs
index ccfde9d..def98a6 100644
--- a/Unity/OpenSee.cs
+++ b/Unity/OpenSee.cs
@@ -196,7 +196,7 @@ public class OpenSee : MonoBehaviour {
     }
 
     void Update () {
-        if (!receiveThread.IsAlive) {
+        if (receiveThread != null && !receiveThread.IsAlive) {
             Start();
         }
 	}