This is very low priority issue as nobody will reach anything close to y=+/-8,000,000 without /tp command. And there may be other bugs that make Minecraft unplayable at so extreme height/depth.
Some CubeProcessors (like FeatureProcessor, BiomeProcessor and FirstLightProcessor) need some cubes around them to do anything. Cubes below depth limit/above height limit will never exist.
This is very low priority issue as nobody will reach anything close to y=+/-8,000,000 without /tp command. And there may be other bugs that make Minecraft unplayable at so extreme height/depth.
Some CubeProcessors (like FeatureProcessor, BiomeProcessor and FirstLightProcessor) need some cubes around them to do anything. Cubes below depth limit/above height limit will never exist.