Haval H9 2026 3rd row seats

Hi all,

So I got a 2026 Haval H9 recently, it’s great so far but I have one issue. When I fold the 3rd row seats all the way down they keep coming back up when I accelerate, I’m not sure of there is a locking mechanism or something I need to do after folding the seats?

Does anyone have the same issue?