Javafx ControlsFX - 打开两个与另一个对话框重叠的对话框

Question

我尝试点击dialog内的button点击新的dialog window。 我收到以下错误。

Key already associated with a running event loop: javafx.scene.Scene@57eef8ee
at com.sun.javafx.tk.quantum.QuantumToolkit.enterNestedEventLoop(QuantumToolkit.java:536)
at org.controlsfx.dialog.LightweightDialog.show(LightweightDialog.java:224)
at org.controlsfx.dialog.Dialog.show(Dialog.java:323)