**Some problems occurred when I was doing new world generation.There are some chunks that are not loaded correctly in the game.

I thought at first that it was just a rendering error, but I quickly found that it was impossible to update the chunks by destroying the blocks, and I could even destroy some blocks that should not be directly touched though these chunks.

I have no idea what happened because I don't know anything about java development.I believe the data of these chunks are exist: I can use the piston to push the item inside those chunk, and those TNT I pushed in could explode normally. All particle effects are rendered normally.Falling at a high altitude will be slow, And will twitch when it touches the place that should be a block.The only commonality I can find between these chunks is that I believe each such chunks contains a brush cage.

If you told me what should I provide I will provide it soon as possible.

Sorry for my bad English. I wrote this by Google translate.