using the desktop Ensemble8.jar, running

javafx -cp dist/Ensemble8.jar ensemble.samples.scenegraph.advancedstage.AdvancedStageApp

and clicking on the button, brings up a stage that is quite different from the desktop version.
I am seeing something odd in the outline or the text "JavaFX" - black and while lines that don't belong.

This was seen on an i.mx6. Screen capture attached.

Note: I don't think this is a problem with Ensemble - just demonstrated by it.