No, rice paper does not melt in water, but it does readily absorb water.
While edible rice paper used in spring rolls softens and becomes pliable when wet, it doesn't actually melt in the sense of dissolving. Instead, it rehydrates and becomes sticky. If submerged for too long, it can disintegrate.
Paper not intended for consumption, often used for ink absorption or crafts, will rapidly absorb water and lose its structural integrity, quickly sinking.
In summary, different types of "rice paper" react differently to water, but neither type truly melts. One softens and becomes pliable, while the other deteriorates.
