I entered java -jar /Applications/Minion.app/Contents/Java/Minion-jfx.jar in a terminal window, and was given a JavaFX Launcher notice that "This application requires a newer version of the Java runtime." Went through the update process, same result in the terminal window-- then deleted files, applets etc through the Java control panel, installed again (ran website check to see if the newest version 'took'), made sure Java is enabled in browser (not that that should make a difference here)-- same results from terminal window. Sorry to be a bother!
