SSFIV 3DS .tex not working

[shishimailion]

Game Name: SUPER STREET FIGHTER IV 3D EDITION
Console: Nintendo 3DS Format extension(s): .tex Type: image

Bug details:

hello, i've been attempting to edit ssfiv 3ds textures for about a couple months now. i've been able to extract the .tex files from the original .arc, but when i open the .tex file, kuriimu2 throws out an error saying "MtTex version 0xA3 is not supported." texture format is known to be ETC1A4 for textures with transparency, and ETC1 for textures without, but mostly ETC1A4.

Sample files (if possible):

https://drive.google.com/file/d/1AWfWxM6Y9eXLXkdylh0JGMh0GJfRr2DM/view?usp=share_link

[shishimailion]

also, i can read them just fine with the raw image viewer, i just can't write to it at all (and idk how to lol)