This clip is from a civilian ship that was nearby. They spot one of the drones trailing the patrol boat before the clip ends.
Another clip, this time it shows what I'm guessing is the first impact
Apologies if this has been posted up thread.
Seeing the tail chase etc makes me wonder whether the ye olde smoke dischargers would help. If the crew has been alerted, at least to make more difficult for the drone pilot to see what/where he's hitting, or don't modern boats have smoke anymore? Have wondered the same with AFV's, the T series can dump smoke can't it? Dump smoke and hide inside, at least make it more difficult for an FPV to hit the rear turret.