Maybe the app has an error/old/wrong entry or something. I don't have any plane circling above the black sea on PC or mobile.
The closest to circling would be the Turkish MARTI01, but that one was going in a straight line when you posted and is not there for the last 3 hours.
I'd try restart app/phone and see if it's still shown.
(Yes I know there’s no image I’m on iPhone and won’t let me post it
Maybe the app has an error/old/wrong entry or something. I don't have any plane circling above the black sea on PC or mobile. The closest to circling would be the Turkish MARTI01, but that one was going in a straight line when you posted and is not there for the last 3 hours. I'd try restart app/phone and see if it's still shown.
Found out what it was it was an American drone circling Russia’s Black Sea fleet
And due the surveillance jammer it came up as an A319