From 191781e9dbf2d1aff39399ffc07434440c2d8a9d Mon Sep 17 00:00:00 2001
From: falkTX <falktx@gmail.com>
Date: Sat, 22 Sep 2018 21:55:59 +0200
Subject: [PATCH] Fix for LV2 plugins with UI feedback ports in bridge mode

---
 source/backend/plugin/CarlaPlugin.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/source/backend/plugin/CarlaPlugin.cpp b/source/backend/plugin/CarlaPlugin.cpp
index 4fb4b046e..f24fa8911 100644
--- a/source/backend/plugin/CarlaPlugin.cpp
+++ b/source/backend/plugin/CarlaPlugin.cpp
@@ -1587,7 +1587,8 @@ void CarlaPlugin::setCtrlChannel(const int8_t channel, const bool sendOsc, const
 void CarlaPlugin::setParameterValue(const uint32_t parameterId, const float value, const bool sendGui, const bool sendOsc, const bool sendCallback) noexcept
 {
     if (pData->engineBridged) {
-        CARLA_SAFE_ASSERT_RETURN(!sendGui,);
+        // NOTE: some LV2 plugins feedback messages to UI on purpose
+        CARLA_SAFE_ASSERT_RETURN(getType() == PLUGIN_LV2 || !sendGui,);
     } else if (pData->enginePlugin) {
         // nothing here
     } else {