From 942b6e6afdbcde966bfc233421bb09c488a5bc67 Mon Sep 17 00:00:00 2001
From: Nikolaus Gullotta <nik@harrisonconsoles.com>
Date: Wed, 24 Jul 2019 15:12:49 -0500
Subject: [PATCH] Fix crash: new_route_from_template can return an empty
 RouteList if contruction failed

---
 libs/ardour/mixer_snapshot.cc | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/libs/ardour/mixer_snapshot.cc b/libs/ardour/mixer_snapshot.cc
index b41b9074d5..0d2ee6f446 100644
--- a/libs/ardour/mixer_snapshot.cc
+++ b/libs/ardour/mixer_snapshot.cc
@@ -344,12 +344,14 @@ void MixerSnapshot::recall()
             route = 0; //explicitly drop reference
 
             RouteList rl = _session->new_route_from_template(1, order, node, name, disp);
-            boost::shared_ptr<Route> route = rl.front();
 
-            if(!route) {
+            //rl can be empty()
+            if(rl.empty()) {
                 continue;
             }
 
+            boost::shared_ptr<Route> route = rl.front();
+
             if(get_recall_groups()) {
                 XMLNode* group_node = find_named_node(node, X_("Group"));
                 if(group_node) {