Interesting Issue. I have been using Beta 4 and the menu comes up okay. When I update Piplay, it seems to install okay, but I no longer have the Piplay menu. Only a reimage back to Beta 4 seems to work. I have a screenshot, that I can upload as soon as I figure out the best way to upload/display it.
you have a problem with your config file. it seems like you are missing a ':'
Line 10 in config.yaml is for displaying or hiding the mouse cursor, which you had asked about previously, so I'm guessing that is where the problem is.