Texture2D 1 Pixel Height, Grayscaled Sprites

[Skuls]

I used AssetStudio on an APK to rip some Character Art. However, it formats the Texture2D Artwork to 256x1 in size, and the Sprites in Grayscale.
Is this an issue with AssetStudio, or the Game I'm ripping from? Someone successfully ripped from this Game back in 2018, but since then new Characters have been added.

Edit: Here's the guy who was successful https://www.thespritas.net/t7609-bleach-...prite-rips