diff --git a/tools/chatgui/src/stream_publish_window.cpp b/tools/chatgui/src/stream_publish_window.cpp
index 34d1758b..573e9e8c 100644
--- a/tools/chatgui/src/stream_publish_window.cpp
+++ b/tools/chatgui/src/stream_publish_window.cpp
@@ -132,7 +132,8 @@ StreamPublishWindow::StreamPublishWindow(StreamPublishEngine* engine, uint64_t g
             connect(question, &QMessageBox::finished, engine, [engine, generation](int result) {
                 engine->answerSoftwareEncoding(generation, result == QMessageBox::Yes);
             });
-            connect(question, &QObject::destroyed, engine, [engine, generation] { engine->answerSoftwareEncoding(generation, false); });
+            connect(question, &QObject::destroyed, engine,
+                [engine, generation] { engine->answerSoftwareEncoding(generation, false); }, Qt::QueuedConnection);
             connect(engine, &StreamPublishEngine::stateChanged, question, [engine, generation, question] {
                 if (engine->softwareEncodingRequest() != generation) question->reject();
             });
diff --git a/tools/chatgui/tests/test_stream_publish.cpp b/tools/chatgui/tests/test_stream_publish.cpp
index c215f115..3959ef37 100644
--- a/tools/chatgui/tests/test_stream_publish.cpp
+++ b/tools/chatgui/tests/test_stream_publish.cpp
@@ -147,7 +147,10 @@ private slots:
         debug_config_init(); debug_set_level(DEBUG_LEVEL_WARN); debug_set_category_level(DEBUG_CATEGORY_STREAM, DEBUG_LEVEL_DEBUG);
         debug_set_category_level(DEBUG_CATEGORY_SYS, DEBUG_LEVEL_ERROR);
         debug_set_category_level(DEBUG_CATEGORY_VIDEO, DEBUG_LEVEL_DEBUG);
-        if (qEnvironmentVariableIsSet("UTUN_TEST_SCREEN_CAPTURE")) QLoggingCategory::setFilterRules("qt.multimedia.*=true");
+        if (qEnvironmentVariableIsSet("UTUN_TEST_SCREEN_CAPTURE")) {
+            qunsetenv("WAYLAND_DISPLAY"); qputenv("XDG_SESSION_TYPE", "x11");
+            QLoggingCategory::setFilterRules("qt.multimedia.*=true");
+        }
         allocations = u_get_allocated_count(); ua = uasync_create(); QVERIFY(ua);
         inst = utun_instance_create_from_str(ua,
             "[global]\nauto_sockets=no\n[chatserver]\ngroup_autoconnect=0\nstorage_autoload=0\nmember_files_enabled=0\n");
@@ -532,6 +535,12 @@ private slots:
         QCOMPARE(softwareOpens.load(), before); engine.stop();
         engine.answerSoftwareEncoding(generation, true); QCOMPARE(softwareOpens.load(), before);
         QTRY_VERIFY_WITH_TIMEOUT(!engine.active(), 4000);
+        // Уничтожение окна с открытым вопросом отменяет запуск после удаления его дочерних виджетов.
+        disconnect(&engine, &StreamPublishEngine::softwareEncodingRequested, &controls, nullptr);
+        auto* temporary = new StreamPublishWindow(&engine, group);
+        QVERIFY(engine.start(group, config)); QTRY_COMPARE(requests.size(), 3);
+        QVERIFY(temporary->findChild<QMessageBox*>("streamCpuConfirmation")); delete temporary;
+        QTRY_VERIFY_WITH_TIMEOUT(!engine.active(), 4000); QCOMPARE(softwareOpens.load(), before);
 #else
         QSKIP("Capture and encoder instrumentation unavailable");
 #endif