diff --git a/libs/ardour/ladspa_plugin.cc b/libs/ardour/ladspa_plugin.cc
index 30b0bad11d..2feb329bb4 100644
--- a/libs/ardour/ladspa_plugin.cc
+++ b/libs/ardour/ladspa_plugin.cc
@@ -91,27 +91,27 @@ LadspaPlugin::init (string module_path, uint32_t index, samplecnt_t rate)
 	_was_activated = false;
 
 	if (!(*_module)) {
-		error << _("LADSPA: Unable to open module: ") << Glib::Module::get_last_error() << endmsg;
+		warning << _("LADSPA: Unable to open module: ") << Glib::Module::get_last_error() << endmsg;
 		delete _module;
 		throw failed_constructor();
 	}
 
 	if (!_module->get_symbol("ladspa_descriptor", func)) {
-		error << _("LADSPA: module has no descriptor function.") << endmsg;
+		warning << _("LADSPA: module has no descriptor function.") << endmsg;
 		throw failed_constructor();
 	}
 
 	dfunc = (LADSPA_Descriptor_Function)func;
 
 	if ((_descriptor = dfunc (index)) == 0) {
-		error << _("LADSPA: plugin has gone away since discovery!") << endmsg;
+		warning << _("LADSPA: plugin has gone away since discovery!") << endmsg;
 		throw failed_constructor();
 	}
 
 	_index = index;
 
 	if (LADSPA_IS_INPLACE_BROKEN(_descriptor->Properties)) {
-		error << string_compose(_("LADSPA: \"%1\" cannot be used, since it cannot do inplace processing"), _descriptor->Name) << endmsg;
+		info << string_compose(_("LADSPA: \"%1\" cannot be used, since it cannot do inplace processing"), _descriptor->Name) << endmsg;
 		throw failed_constructor();
 	}
 
diff --git a/libs/evoral/src/Sequence.cpp b/libs/evoral/src/Sequence.cpp
index b94ac088f5..99d5d1448c 100644
--- a/libs/evoral/src/Sequence.cpp
+++ b/libs/evoral/src/Sequence.cpp
@@ -949,7 +949,8 @@ Sequence<Time>::append(const Event<Time>& ev, event_id_t evid)
 			                   | (0x7F & ev.pitch_bender_lsb())),
 			evid);
 	} else if (ev.is_poly_pressure()) {
-		append_control_unlocked (Parameter (ev.event_type(), ev.channel(), ev.poly_note()), ev.time(), ev.poly_pressure(), evid);
+		const ParameterType ptype = _type_map.midi_parameter_type(ev.buffer(), ev.size());
+		append_control_unlocked (Parameter (ptype, ev.channel(), ev.poly_note()), ev.time(), ev.poly_pressure(), evid);
 	} else if (ev.is_channel_pressure()) {
 		const ParameterType ptype = _type_map.midi_parameter_type(ev.buffer(), ev.size());
 		append_control_unlocked(
diff --git a/libs/surfaces/faderport/faderport.cc b/libs/surfaces/faderport/faderport.cc
index ed2393e0e2..da2792dbd5 100644
--- a/libs/surfaces/faderport/faderport.cc
+++ b/libs/surfaces/faderport/faderport.cc
@@ -1199,6 +1199,7 @@ FaderPort::map_auto ()
 			get_button (FP_Touch).set_led_state (_output_port, false);
 		break;
 		case ARDOUR::Touch:
+		case ARDOUR::Latch: // XXX
 			get_button (FP_Read).set_led_state (_output_port, false);
 			get_button (FP_Write).set_led_state (_output_port, false);
 			get_button (FP_Touch).set_led_state (_output_port, true);
diff --git a/libs/surfaces/mackie/mackie_control_protocol.cc b/libs/surfaces/mackie/mackie_control_protocol.cc
index ba99737283..c43483a7ba 100755
--- a/libs/surfaces/mackie/mackie_control_protocol.cc
+++ b/libs/surfaces/mackie/mackie_control_protocol.cc
@@ -2016,6 +2016,14 @@ MackieControlProtocol::update_fader_automation_state ()
 		update_global_button (Button::Latch, off);
 		update_global_button (Button::Grp, off);
 		break;
+	case Latch:
+		update_global_button (Button::Read, off);
+		update_global_button (Button::Write, off);
+		update_global_button (Button::Touch, off);
+		update_global_button (Button::Trim, off);
+		update_global_button (Button::Latch, on);
+		update_global_button (Button::Grp, off);
+		break;
 	}
 }