hello Graham
It was Friday several time's on my screen in smartview but it didn't appear in mylog and because its not a adsb flight it looked a bit strange to me.
I had more of these strange flights that were in smartview and not in mylog , but they only showed up when the networkflights were connected and they disappeard assoon as i disconnected networkflights.
I am not sure if it was a real flight or a problem in my radarbox, thats why i tried to find out of someone had traced it to.
Fred