diff --git a/stimBuffApis/livoxGen1/pcloudStimulusProducer.cpp b/stimBuffApis/livoxGen1/pcloudStimulusProducer.cpp
index f94d2ca..0ab8dfe 100644
--- a/stimBuffApis/livoxGen1/pcloudStimulusProducer.cpp
+++ b/stimBuffApis/livoxGen1/pcloudStimulusProducer.cpp
@@ -161,6 +161,7 @@ void PcloudStimulusProducer::start()
 
 	if (!openClCollatingAndMeshingEngine.setup())
 	{
+		ioUringAssemblyEngine.finalize();
 		std::cout <<__func__ <<"Failed to setup() "
 			<<"OClCollMeshEngine.\n";
 		return;