Chunks near to and of the mushroom island biome (and it's variant, apparently) fail to generate. Previously generated islands are not affected in any way by this bug.
To reproduce, create a world, infinite or old, using a seed that previously generated a mushroom island. As you approach the biome's area, terrain generation will freeze, failing to load any further. The exact distance threshold from the biome for this to occur is unknown. Attempting to quit to title while within this range may result in a crash.
Tested in creative and survival mode, using the seeds 'Frighten' (old world), 'pot22', 'shroomzy', and '1425694139'.
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is duplicated by 6
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Confirmed on Samsung Galaxy S4 Android 5.0.1 running MCPE 0.11.1 After reaching an area that fails to generate correctly, the world gets into a whole lot of trouble loading chunks, even the ones that it had previously generated.
Confirmed on Samsung Galaxy S4 Android 5.0.1 running MCPE 0.11.1 After reaching an area that fails to generate correctly, the world gets into a whole lot of trouble loading chunks, even the ones that it had previously generated.
And also when I quit on the game, it crashes. MCPE-9277
And also when I quit on the game, it crashes. MCPE-9277
Tested both seed pot22 and 1425694139. I was able to see the mushroom biomes without any chunk loading issues. This was a problem in 0.11.1, but appears to have been fixed as of 0.12.1 beta 2.