diff --git a/tools/chatgui/src/streamgrid_window.cpp b/tools/chatgui/src/streamgrid_window.cpp
index 1c503860..b8d3d071 100644
--- a/tools/chatgui/src/streamgrid_window.cpp
+++ b/tools/chatgui/src/streamgrid_window.cpp
@@ -131,17 +131,23 @@ void StreamGridWindow::restoreGrid() {
 
 /* Не перехватываем drag/колесо zoom. Активация после release даёт VideoRenderWidget завершить drag. */
 bool StreamGridWindow::eventFilter(QObject* watched, QEvent* event) {
+    if (event->type() != QEvent::MouseButtonPress && event->type() != QEvent::MouseMove && event->type() != QEvent::MouseButtonRelease)
+        return QWidget::eventFilter(watched, event);
+    auto* mouse = static_cast<QMouseEvent*>(event);
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+    const auto position = mouse->globalPosition().toPoint();
+#else
+    const auto position = mouse->globalPos();
+#endif
     if (event->type() == QEvent::MouseButtonPress) {
-        auto* mouse = static_cast<QMouseEvent*>(event);
-        if (mouse->button() == Qt::LeftButton) { m_pressed = watched; m_pressPosition = mouse->globalPos(); m_dragged = false; }
+        if (mouse->button() == Qt::LeftButton) { m_pressed = watched; m_pressPosition = position; m_dragged = false; }
     } else if (event->type() == QEvent::MouseMove && m_pressed == watched) {
-        auto* mouse = static_cast<QMouseEvent*>(event);
-        if ((mouse->globalPos() - m_pressPosition).manhattanLength() >= QApplication::startDragDistance()) m_dragged = true;
+        if ((position - m_pressPosition).manhattanLength() >= QApplication::startDragDistance()) m_dragged = true;
     } else if (event->type() == QEvent::MouseButtonRelease && m_pressed == watched) {
-        auto* mouse = static_cast<QMouseEvent*>(event); m_pressed = nullptr;
+        m_pressed = nullptr;
         if (mouse->button() == Qt::LeftButton && !m_dragged &&
-            (mouse->globalPos() - m_pressPosition).manhattanLength() < QApplication::startDragDistance()) {
-            for (const auto& tile : m_tiles) if (tile.video == watched || tile.video->isAncestorOf(qobject_cast<QWidget*>(watched))) {
+            (position - m_pressPosition).manhattanLength() < QApplication::startDragDistance()) {
+            for (const auto& tile : m_tiles) if (tile.video && (tile.video == watched || tile.video->isAncestorOf(qobject_cast<QWidget*>(watched)))) {
                 QMetaObject::invokeMethod(this, [this, source = tile.source] { activateTile(source); }, Qt::QueuedConnection); break;
             }
         }