Drain new oil and look for metal again.
I would take off oil pan to look for deposits and disassemble and clean clutch.
Developed paranoia to dealer mechanics, every second time something absolutely silly goes wrong.
To name few: Official Mercedes dealer destroyed valves at cam chain change.
Official Yamaha dealer changed my new Busa oil (warranty requirement at first change). Luckily "guru" said: "Now you got awesome 20-W60 oil"...wtf... called Suzuki dealer (other town) who specially instructed me to go there (warranty issue) and asked clever question: "I'm thinking to fill 20-W60, do I still have warranty in that case?" Man says: "No it voids warranty. Did you already do it?". I answered: "You did it".
Gen4 race: high spec.
Suzuki GSX1300R Hayabusa 2013: stock.
Kawasaki KX450F 2016: love it.