Lettuce wraps are great further wrapped in rice paper, like for fresh rolls. It gives the wraps an additional layer of lovely texture and holds everything together, making eating them a whole lot less messy.
She's trying to wrap the rolls in the hard, dry rice paper. It's one thing to not know that wrappers like that need to be moistened, it's another thing entirely to bring the consequences of your ignorance on yourself. Now she's confused. "Why aren't these working?"
I have made spaghetti at a 1.5 mm thickness and it came out good. I extruded mine so that it has the hollow center that most spaghetti you find at the store has.