WinMPQ Problem

[Darkmapper]

Hi there i got a problem with winMPQ.
I basicly know how to use it (were modding starcraft 1 already), and wanted to edit a SC2 map. Ive extracted Objects. then ive edited it (only changed 1 highyieldmineral to a marine) loaded it and it crashed. Even when i export the file first, delete the one in the mpq and add the exact same file again, it crashes. Ive set the local ID to 0, because this is what the other files have too, ad i really got no idea why it doesnt work.