Add :

1) Go to https://mcasset.cloud/1.20/assets/minecraft/models/block and download the the desired model. 2) Open the file and replace the word "cube" by "solid".

  "parent": "minecraft:block/cube_column",

  "parent": "minecraft:block/solid_column",

3) Place the edited model to ..\assets\minecraft\models\block

Remove :

Just remove the model from the pack or replace "solid" by "cube".

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