Regardless of the biome, time, resolution, etc. in which the game is taking place, the daytime sky persists its appearance in the night sky, compromising the game experience.
MC-301729
Using the new function, vibrant visuals present a black sky in the daytime.
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This bug does not relates to Minecraft java.
Vibrant visuals are (at least for now) only aviable on bedrock, so you should make a bug report there (Minecraft: Bedrock Edition - Jira Service Management)