diff --git a/stimBuffApis/livoxGen1/pcloudStimulusProducer.cpp b/stimBuffApis/livoxGen1/pcloudStimulusProducer.cpp
index 17a86e1..409530b 100644
--- a/stimBuffApis/livoxGen1/pcloudStimulusProducer.cpp
+++ b/stimBuffApis/livoxGen1/pcloudStimulusProducer.cpp
@@ -420,8 +420,11 @@ public:
 
 		if (!success)
 		{
-			std::cerr << __func__ << ": Failed to assemble frame" << std::endl;
 			callOriginalCallback();
+
+			if (pcloudProducer.attachedStimulusBuffers.size() > 0) {
+				std::cerr << __func__ << ": Failed to assemble frame.\n";
+			}
 			return;
 		}