Minecraft 14w29b, Minecraft 14w30c, Minecraft 14w31a, Minecraft 14w32b, Minecraft 14w32d, Minecraft 14w33c, Minecraft 14w34b, Minecraft 14w34d, Minecraft 1.8-pre1, Minecraft 1.8-pre2, Minecraft 1.8-pre3, Minecraft 1.8, Minecraft 1.8.1-pre3
Java 7 update 55 (build 1.7.0_55-b13)
I am unsure of the exact reproduction, however I was exploring a new area of the current seed I am using (-1421103864573832176) and in the upper right corner unexpected chunks started appearing (Repeating).
I can provide my save game if you wish (~50 megs uncompressed).
What I do know:
Appeared in definitely new chunks; however not in all new chunks.
All appear to be at the same height . Chunks appear to be all the exact same from outside;
Definitely not of existing chunks (they are Savanah, however there is no actual Savanah in my world generated yet).
If I am not 'in' the unusual chunks, it shows the correct biome, and it appears like it is simply generating polygons along a certain line of site (I can sail below and if my view angle is offset enough, the chunks disappear.
If I am 'in' the unusual chunks, things get weirder:
- I can only walk a handful of blocks
- Biomes reported in the logging are very small (in what is otherwise I single chunk may contain 2 or three biomes)
- The grass, sky, etc. in the weird chunk will reflect the biome stated in logging, not the actual biome, nor the biome that the weird chunk otherwise appears to be.
My suspicion is it is loading corrupted data. It also wouldn't surprise me if it had some connection to a recent issue I have been seeing where chunks completely fail to generate geometry (I can walk in them fine, however nothing is drawn to screen); or more recently fail to update quickly (e.g. I can mine a few blocks, but it may take a noticable fraction of a second, to several seconds before the change is visually updated).