It wont be the Cam sensor - a failed/failing cam sensor can only cause non starts for once your car is in motion the cam sensor has nothing do - however a failing crank sensor can cause cut outs as well as non starts.
If she fails to start again /cut out again - turn her over and if the rev counter remains motionless that points to a goosed crank sensor - they classically fail under heat and once cooled down a failing sensor will work again.
Never heard of a particular issue with the crank sensor on the KV 6 - they will eventually fail on all cars