Thats a newer model than mine although I know the style of latch you have.
As Donna indicated if things are moving around in the fridge they could be pushing on the door. On mine its a problem if I have heavy items in the door such as a wine bottle but its not snug and can move - better to fill the door than to have only one wine bottle in it. You dont want to fill the door up with wine bottles though
as putting to many heavy items on the door can cause the hinges over time to bend a little which may be what your problem is - it may be the hinges are bent or loose? enough to stop the latch from being lined up correctly..... sorry thats just my best guess answer.
Hopefully someone with the same fridge can give you a better one.