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Minecraft Version

1.20.1

The Issue

[1.20.1] Last Version

Minecraft.Forge_.1.20.1.-.Um.jogador.2024-09-23.19-43-51.mp4

Steps to Reproduce

I simply added an imported animation.

newzwei.zip

The data package and the resource package, if you need it

The name of the weapon style I think is “newzweihander”

I added Air Slash animation on datapack in 20.9.5

But if you change the animation type it resets the previous elements so I recommend a workaround.

You can directly modify the animation type in the resource like this

In this way, you don't have to fill the required values again in datapack editor, just switch the name of class in the resource