Bedrock Edition beta 1.18.0.27

Beta 1.18.0.27 is the seventh beta version for Bedrock Edition 1.18.0, released on November 11, 2021, which fixes bugs.

Fixes

 * Optimized chunk generation on some devices
 * Added a new world upgrade animation to the world upgrade/backup screen.
 * Fixed block actors not working properly below y=0 when upgrading a world to Caves & Cliffs: Part II.
 * Backup copies of worlds no longer have the Caves & Cliffs experimental toggle enabled.
 * Fixed the new storage location prompt occurring daily on some Android devices.
 * Fixed blocks like water and lava sometimes generating mid-air in specific worlds updated from older versions.