Localised Textures not building properly

[normal jacinth]

I was attempting to make a texture replacement mod. It didn't work because I realised that I was replacing the wrong file, I was meant to replace the one in the L10N. So I tried building new paks in UE (fairly certain I did everything the same), and it's no longer working properly. The content folder only shows these files now on FModel

Is there something else I need to be doing specifically for localised texture files? By default, when building the filepaths in UE, it won't even let you name a file L10N without turning on Show Localised Content

I set the chunk id to 111, right is the non localised one and it seems to be building the paks fine, the left is the localised version which isn't working

[midnight crescent]

Open project settings and ensure the language you want to package is checked

And the asset you are trying to package must be both in L1on folder AND the normal filepath