It'll be part of an ongoing service bulletin that was initially raised around the end of 2025, to quote-from the US bulletin-
"After a quality inspection it was found that due to improper machining, the right-side chain tensioner screwplug doesn’t meet the specifications over the service life of the motorcycle.
As a result, over increased mileage accrued noise and engine damage may occur."
My bike was delayed by a couple of weeks as the work was carried out pre-delivery while in-service bikes are being dealt with at service...as you've just unexpectedly found out...