The Dirt Texture are command block texture.

MCPE-56232 Some blocks had command block textures Resolved MCPE-56291 Wrong texture on some blocks on times Resolved MCPE-57132 The textures of the world are overlaid with other Resolved MCPE-57723 Wool and moss stone textures are odd Resolved MCPE-58467 there is a weird command block texture when breaking blocks in the new update for bedrock Resolved MCPE-58504 Many Texture Issues Resolved MCPE-58829 There are a lot of glitchy textures including Diamond Block, All wool and carpet, Dirt, etc.. Resolved MCPE-58865 Issues with textures after installing the Buzzy Bee update Resolved MCPE-58984 Textures of certain blocked render as command blocked or other incorrect textures when close but when far away they render properly Resolved MCPE-59060 Some blocks and items textures not correct in some worlds Resolved MCPE-59132 Glitched blocks Resolved MCPE-59185 Broken textures Resolved MCPE-59318 Texture Issues Resolved MCPE-59336 Cobblestone Texture changes into Command Block Resolved MCPE-59344 All nether brick related textures look like chain command Blocks, even the fence! Resolved MCPE-59415 Texture glitch Resolved MCPE-59432 Everything is command blocks Resolved MCPE-59576 command block issue Resolved