From b977b871777060034d592b25e6397451c97f49df Mon Sep 17 00:00:00 2001
From: Klaus Basan <klaus.basan@klausbasan.de>
Date: Sat, 27 Oct 2018 01:55:34 +0200
Subject: [PATCH] Avoid issue when shutting down

---
 src/blackgui/loginmodebuttons.cpp | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/blackgui/loginmodebuttons.cpp b/src/blackgui/loginmodebuttons.cpp
index 691cfb046..1847d5318 100644
--- a/src/blackgui/loginmodebuttons.cpp
+++ b/src/blackgui/loginmodebuttons.cpp
@@ -73,14 +73,16 @@ namespace BlackGui
 
     void CLoginModeButtons::configureLoginModes()
     {
+        if (!sGui || sGui->isShuttingDown()) { return; }
+
         // we have no idea how we can get here without the context existing Ref T389
-        if (CBuildConfig::isLocalDeveloperDebugBuild() && (!sGui || !sGui->getIContextSimulator()))
+        if (CBuildConfig::isLocalDeveloperDebugBuild() && (!sGui->getIContextSimulator()))
         {
             // how is this possible
             Q_ASSERT_X(false, Q_FUNC_INFO, "No context or sGUI");
         }
 
-        if (!sGui || !sGui->getIContextSimulator() || (!sGui->isDeveloperFlagSet() && !sGui->getIContextSimulator()->isSimulatorSimulating()))
+        if (!sGui->getIContextSimulator() || (!sGui->isDeveloperFlagSet() && !sGui->getIContextSimulator()->isSimulatorSimulating()))
         {
             // Disable pilot login modes
             ui->rb_LoginNormal->setEnabled(false);