diff --git a/gtk2_ardour/loudness_dialog.cc b/gtk2_ardour/loudness_dialog.cc
index 0a131522b9..6b8793c3a3 100644
--- a/gtk2_ardour/loudness_dialog.cc
+++ b/gtk2_ardour/loudness_dialog.cc
@@ -110,6 +110,9 @@ LoudnessDialog::LoudnessDialog (Session* s, AudioRange const& ar, bool as)
 	, _ignore_preset (false)
 	, _ignore_change (false)
 {
+	/* Dialog can be displayed from the mixer, override global transient_parent */
+	unset_transient_for ();
+
 	/* query initial gain */
 	_gain_out = accurate_coefficient_to_dB (_session->master_volume()->get_value());
 
diff --git a/gtk2_ardour/plugin_pin_dialog.cc b/gtk2_ardour/plugin_pin_dialog.cc
index 2fb8d63dfe..6cd353f5dd 100644
--- a/gtk2_ardour/plugin_pin_dialog.cc
+++ b/gtk2_ardour/plugin_pin_dialog.cc
@@ -2004,6 +2004,7 @@ PluginPinDialog::PluginPinDialog (boost::shared_ptr<ARDOUR::PluginInsert> pi)
 {
 	ppw.push_back (PluginPinWidgetPtr(new PluginPinWidget (pi)));
 	add (*ppw.back());
+	unset_transient_for ();
 }
 
 
diff --git a/gtk2_ardour/plugin_ui.cc b/gtk2_ardour/plugin_ui.cc
index 8132db5341..45081c93b2 100644
--- a/gtk2_ardour/plugin_ui.cc
+++ b/gtk2_ardour/plugin_ui.cc
@@ -189,6 +189,7 @@ PluginUIWindow::PluginUIWindow (
 	set_border_width (0);
 	set_default_size (w, h);
 	set_resizable (_pluginui->resizable());
+	unset_transient_for ();
 }
 
 PluginUIWindow::~PluginUIWindow ()
diff --git a/gtk2_ardour/processor_box.cc b/gtk2_ardour/processor_box.cc
index d963cf48d7..10efac724d 100644
--- a/gtk2_ardour/processor_box.cc
+++ b/gtk2_ardour/processor_box.cc
@@ -4279,11 +4279,12 @@ ProcessorBox::manage_pins (boost::shared_ptr<Processor> processor)
 	PluginPinWindowProxy* proxy = processor->pinmgr_proxy ();
 	if (proxy) {
 		proxy->get (true);
-		proxy->present();
 
 		Gtk::Window* tlw = dynamic_cast<Gtk::Window*> (get_toplevel ());
 		assert (tlw);
 		proxy->get ()->set_transient_for (*tlw);
+
+		proxy->present();
 	}
 }
 
@@ -4568,12 +4569,11 @@ ProcessorWindowProxy::show_the_right_window (bool show_not_toggle)
 	if (_window && fully_visible () && show_not_toggle) {
 		return;
 	}
-	toggle ();
 
 	if (_window) {
-		/* clear any transients if window is toggled externally (ctrl surfaces) */
 		_window->unset_transient_for ();
 	}
+	toggle ();
 }