Tooltip in only one window

[SchweinchenFuntik]

JavaFX: 15 JPro: 2020.1.3 JDK: Adopt JDK

I started actively testing applications and noticed that the Tooltip appears in only one window. In the first window, hover over the node (with the Tooltip), in the second window we do the same, in the first window the tooltip disappears; in the first window we repeat - the Tooltip disappears in the second.

Create Tooltip with FXML and Tornadofx (in different views)

[SchweinchenFuntik]

Im using App TornadoFX:

class MyJProApp : JProApplication() {
    private val app = MyTornadoFxApp()

    override fun start(primaryStage: Stage) {
        val scope = WebScope(primaryStage)
        app.scope = scope
        FX.setApplication(scope, app)
        app.start(primaryStage)
    }

    override fun stop() {
        app.stop()
        super.stop()
    }
}