When using the Vibrant Visuals feature (Preview), a visual bug appears when moving near or through water blocks. A blue trail effect follows the water, creating a stretched or smeared appearance. This trail is not present when the player is standing still and only occurs while in motion.
This seems to be related to how the preview feature handles water rendering, reflections, or transparency. Other transparent blocks (like glass or ice) may also behave strangely under similar conditions.
The issue is purely visual but can be distracting during gameplay.
This issue is being tracked at MCPE-204062.