[MC-185485] All walls in Vanilla pack is bug

I've install vanilla pack but all wall are replaced by the pink bug block. However, item is correct in the menu

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Are you using any resource packs? If so, please remove them and see if the issue still occurs - if it doesn't contact the resource pack author.

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I've found 14 .json files in error in /minecraft/blockstates/

all file #block#_wall.json was corrupted

I've just disabled the files and it's all right !