Still not sure what you mean by "latch" but the pics below should cover whatever you need to see.
Observations on my 30DS door. My early 2014 had the door attached with sheet metal screws not rivets. I have since replaced some screws with a rivets because the tension on the door as it opens is greater than the strength of the screws and frame. The screws were loosening and backing out stripping the door frame metal.
IE. When I unlatch from the outside I hold the door until the gas shock is fully open. I believe If you let it bounce you will eventually get the door out of alignment causing latch and lock and hinge issues.
When I open the door from the inside I hold the door inside handle until it is open all the way. Same reason. This takes a bit of discipline (especially with visitors and kids) but I believe will extend the life of the hinges and and screws. I've read hear that the gas shock mount (partial plastic) can easily break too.
I use the same principe with my Kwikee steps, letting them fully extend before placing pressure on them.
2014 FR330 DS
Ps. Many u can help me with my swing. Slice 😊