added a check

src/gui/PathsTool.cpp

@@ -2261,6 +2261,7 @@ void PathsTool::TrackPath(std::size_t idx)
 		m_dlgConfigSpace->SetBlockCalc(true);
 	BOOST_SCOPE_EXIT(&m_dlgConfigSpace)
 	{
+		if(m_dlgConfigSpace)
 			m_dlgConfigSpace->SetBlockCalc(false);
 	} BOOST_SCOPE_EXIT_END
 

src/gui/settings_variables.h

@@ -261,7 +261,7 @@ constexpr std::array<SettingsVariable, 26> g_settingsvariables
 		.editor_config = "Shortest Path;;Avoid Walls",
 	},
 	{
-		.description = "Try direct path",
+		.description = "Try using direct path segments",
 		.key = "settings/try_direct_path",
 		.value = &g_try_direct_path,
 		.editor = SettingsVariableEditor::YESNO,