Both Airports from FSDT. But the Airports seems to be ok. Must be an ai plane(s) from Hawaiiscenery. Different times on day the plane shadow is still there or not. But no plane or whatever! Semms it is the same planetype on both airports. Any idea?
maybe is one of the IA models included with George Keogh´s airports that is not rendering properly, but if this is the case I don´t know why. You can try to copy again these files (the ones to copy to the SimObjects Airplanes folder) and if the problem persists you can try to identify it and delete it ( I can´t distinguish the silhouette in the image).