There is a stage with SwingNode, which contains JPanel with JInternalFrame and two basinside.
Reproducible: always
Regression: no
Steps to reproduce:
1. Compile and run attached file
2. Try to resize red frame, try to move mouse over button or combobox, try to click that components.
Expected result: Red frame resized, mouse events are logged to stdout.
Actual result: nothing happens

This is a mac- and OEl-specific issue. That works fine on linux.