Texture Replacement

[Slightly Apathetic Mio]

I'm having an issue where some textures I try to replace in Oreimo Portable (ULJS00358) and Oreimo Tsuzuku Portable (NPJH50568) aren't replacing. With save textures on, I played to right before where I wanted to dump the texture from, emptied the /new folder, and started a new game, which dumped the texture without the .png extension. I copied the hash, placed it in textures.ini, and made sure the replacement image was in the right location but when I restart PPSSPP and start the game with texture replacing on, it doesn't replace the texture. Is there something I'm doing wrong?