Initialize COM for capture cleanup and release completed leases

tools/chatgui/src/stream_publish_engine.cpp

@@ -738,6 +738,7 @@ void StreamPublishEngine::videoLoop(StreamPublishConfig initial) {
 void StreamPublishEngine::tick() {
     if (!active()) return;
     if (!m->running && m_capture.closing()) return;
+    if (!m->running) m_microphone.release();
     stream_publisher_status status;
     if (!gui_stream_publish_status(m->id, status)) {
         stop();