What happened?

The Texture of the Liquid is above the Bucket with Custom Model of another Texture pack

Loader

forge

Mod Version

2.3.2

Minecraft Version

1.19

Relevant log output

No response

How do other modded buckets look like?

in most mods i can change the bucket type or some other stuff ...but in your mod there is no "fert.bucket.png" to change that

here you see that your bucket is the only one which had the liquid not correctly

the liquid is 2 pixel above the bucket...
and i cant change that because you dont have a file which does that

The bucket model uses the built-in forge generated model, but you could overwrite it to use a custom texture using a resourcepack by modifying the models/item/fertilizer_bucket.json file