After new areas of a world have finished generating, sometimes they fail to render properly, even though in all other ways, they exist in-game.

World was expected to render normally, and blocks to render quickly after chunk generation, however, blocks were still unrendered well after the chunk was generated. Blocks act as if they are there, but are not visually present.

1. Create a world.
2. Explore for a minute or two.
3. Rendering issues should be noticed.
(refer to attached screenshot)

This problem may be fixed by either reloading the world or adjusting render distance, but is an annoying inconvenience for players to fix.