Hi, got my 2016 Busa brand new and it does the same thing, not all the time , once here and there but my solution is,
GO FASTER, it never does it when i go fast, and i don't put the six gear bellow 120 kmh. I got 12,500 km on the Busa and in all it did it about 10 times last year. I don't worry about that , i had four gs1150ef in the past and they did the same even my zx11 and my Goldwing too , and never got any problem with any of them, Don't worry , drive safely and enjoy.