My Mazda CX30 2020 with 10000 miles on had an issue when the sunroof blind was shut or open up to half way . When going over a rough surface it rattled. It went into the garage under warranty, the found a pad at the back section had worn or come loose. and repacked it Get it done under warranty. I first thought it was the rear spoiler that had come loose. That was repacked and tightened . When I asked the garage if the sunroof blind was a Mazda issue they said they had never come across this before. I could stop it rattling by light upward finger pressure at the rear of the shade or a wedge used at the rear of the blind.