A320 sinking on approach after update? Not staying at requested altitude

@PZL104 Here it is: I was at 12,000, ATC told me to go to 9,000 which makes sense checking also the CSTR. Clicked 9,000, managed altitude (upper arrow on knob), plane started descending smoothly, then did not stop at 9,000, actually increased even more the vertical speed. I crashed it :-).
Again, never happened to me before the update, and all the previous changes of altitude worked perfectly, it always happens when I start approaching (somewhere around the decel). Maybe from the screenshot you spot something? Cheers