After finally managing to have my livery at the sim, it displays completely different to what was supposed to be. I’ve put the colors at the albedo files and shadows/roughness/metalness respectivelly in the RGB channels of the composite file. Compressed them with MSFS Textures Toolbox, built it on the SDK (which ignored my texture files), copied the DDS and JSON to the distribution folder, recreated layout.json with MSFS Layout Generator and opened it on the sim. It’s completely different. DDS files are present at the virtual file system, and converting the model back with Blender’s MSFS glTF importer works fine. I guess my textures are being ignored for some reason and I have no clue on how to solve this!
How it should be rendered.
How it opens in the sim.