I was at the factory today to have a few items addressed, latches being one of them, before my warranty period is up. Bob gave me a few extras and replaced the one that sticks the worst. It wouldn't hurt to give them a call and see if you can get a few extras to keep on hand for any that break and to replace any that chronically get stuck. He said that the ones they used prior to these wouldn't get stuck, but instead had the opposite problem, popping open occasionally while underway. So they changed to the ones they use now.
By the way, I highly recommend visiting the factory if you have a list of items that needs work or looking at. After the warranty period is up, they only charge $60 an hour. No one knows your rig better and they are an awesome bunch of people.