If you turn on Vibrant Visuals before generating the world, the blocks in the water will sparkle, but if you turn on Vibrant Visuals after generating the world, they will not.
If you turn on Vibrant Visuals before generating the world, the blocks in the water will sparkle, but if you turn on Vibrant Visuals after generating the world, they will not.
This issue is being tracked at MCPE-221684.