Welcome aboard Kaleun Wintahs
It certainly sounds like some form of file corruption.
Did you install GWX on a clean/fresh installation of SH3 patched to 1.4b :hmm:
Click on my sig for detailed instructions on the installation technique from our GWX website.
GWX3.0 is due to be released this coming Christmas Eve and that should ensure future installations are potentially easier.
