Textures missing data when exporting model and textures together

[DeveloperBat]

If a model is exported from Metanoia (and the user chooses to export the textures), the resulting textures are missing data in the lower right corner of all exported textures.

(It seems to be an issue with the model exporter, since if you were to extract all files within a .xc file with Metanoia, and then open one of the .xi files with Kukkii you would be able to see and export the entire texture.)

Image 1. Result of an exported .png file, when exported alongside a model in Metanoia:

Image 2. The same texture, but this one was taken from the .xi file after exporting all files from a .xc file within Metanoia: