It's hard to imagine the latches on both sides letting go, Dwight, although if you were on Saskatchewan roads at the time, maybe...
. I haven't personally had this issue, though there was a broken screw or two on one bay door's latch when the coach was new that BCS repaired.
You say the latches look good, but obviously something's not right. I'd first check that all the latch mounting plate and catch plate screws are in place and snug. Looseness on either side could result in misalignment or instability, and unintentional release or a door stuck closed. See that the latches line up well with the catches and check that something hasn't happened to the hinge to throw their alignment out of whack.
For some there can be a learning curve to properly shutting bay doors. When you close each door, especially vertically opening ones, gently lean weight from your leg into it and be certain you hear the latch on each side fully engage its catch. Sometimes I have to carefully do this on each side near each catch while holding the handle - just a nudge with the side of my leg after I would otherwise think the door has shut because it's flush with the coach body. It's easy to think a door is closed because it's even all across, but you need to actually hear each latch spring into position behind its catch to be sure.
I don't know much about the handle mechanism itself, but I'd be sure it appeared to be fully and properly moving the latches completely in and out. Wear or a missing rod retainer of some sort is conceivable I suppose, but I would think you would notice sloppiness, or a door stuck closed now and then.
Some fellows have had to replace their latches due to breakage or wear. There is a monthly ad in the FMC magazine for a supposedly more hardy latch, if wear is the issue.
Hope some of this is helpful, or others here have more ideas.
Joel