If one requests focus to a Swing component inside an unfocused SwingNode, focus won't be transferred to SwingNode itself.
Use the attached test to reproduce the issue. A stage with fx and swing buttons will be shown. Click the fx button (when it's focused). Focus will be transferred to the swing button, however the fx button will be still visually focused.
Use the attached test to reproduce the issue. A stage with fx and swing buttons will be shown. Click the fx button (when it's focused). Focus will be transferred to the swing button, however the fx button will be still visually focused.