Not sure you can adjust the centre latch, but someone on here might know differently. However it could be the bumper out of alignment. When you remove the bumper, if you put it back on and don't push it in as you do up the torx screws you can be left with a panel gap, which may then look like the bumper is not closing properly. If you loosen the screws and then push the bumper forward and tighten them up it may fix the issue.