Texture errors will occur when the chunk is reopened

When I'm playing the custom world, I want to reload the chunks. When reloading the chunk, a severity bug was found. The terrain is not right, you can see that the block is the whole color, and there are many white objects. My material has not been deleted, but it is very much like the missing material, and the material in the picture is extremely serious. And the grass appeared strange texture, all white green, seemingly invisible. Not only that, but you can also see what the leaves look like in the picture. Leaf. The leaves are opaque, because you can see strange textures, and even more vines. The vine can not see through it, making the game very strange. And the grass is also a face. Let's not say anything more. The items are all white, and the blocks are all white, all of which are similar to the missing texture. And the grass square in the picture is all white.

This bug phenomenon is very serious, but it is rare for it will be seen after reloading the chunk. This bug must be repaired.