unanswered [ORAS] Need Help Changing Map Textures

[RubyCarbuncle]

Hi, I'm hoping to get some answers on how to change map textures. I know where the map textures are located (a/0/1/4) however when I open the GARC file is when things start to get iffy.

If I open the GARC using GARCTool than all the textures I'm looking to edit are in .133 files. So, I open Pk3DS and open the .133 files and edit the textures as normal using Ohana. Now when I convert the folder back into a .133 and rebuild the GARC the game will crash when I try to load the specific map I've edited.

So, I figured it was a problem with GARCTool, so I decompressed a clean GARC and went through the same process, this time with the .133 files appearing as .bin files instead. I unpack, repack and launch the game and get the same problem.

I know editing map textures is possible, as I've seen it done on the exact maps I'm looking to edit, but can anyone help me work around this issue?