This is reproducible with marina b05.

With franca build, a Stage shows without setting its width and height will be shown in such a way that its contents are fully visible. But, with marina build, only part of the scene is visible.

To reproduce, run the below test. With marina, only part of the Rectangle is seen. Stage has to be resized to see it fully.

import javafx.stage.*;
import javafx.scene.*;
import javafx.scene.shape.*;
import javafx.scene.paint.*;

Stage {
    scene: Scene {
        content: Rectangle {
            x: 30
            y: 30
            width: 50
            height: 60
            fill: Color.BLUE
        }
    }
}