do not attempt to update transport master rows if audioengine is not running

diff --git a/gtk2_ardour/transport_masters_dialog.cc b/gtk2_ardour/transport_masters_dialog.cc
index 5172c78f85162a2c6ca9901b3214ba216084fb27..7421671a01db14fef1eacc8936993f329c30ba28 100644 (file)
--- a/gtk2_ardour/transport_masters_dialog.cc
+++ b/gtk2_ardour/transport_masters_dialog.cc
@@ -488,6 +488,10 @@ TransportMastersWidget::Row::update (Session* s, samplepos_t now)
        boost::shared_ptr<TimecodeTransportMaster> ttm;
        boost::shared_ptr<MIDIClock_TransportMaster> mtm;
 
+       if (!AudioEngine::instance()->running()) {
+               return;
+       }
+
        if (s) {
 
                if (tm->speed_and_position (speed, pos, most_recent, when, now)) {