If you make a change to the FPE file then you delete the BIN to make sure it gets updated with the newer changes. (FPSC is supposed to update them automatically if a change occurs, but sometimes it doesn't.
)
Perhaps your model or FPSC is looking to a different source for the texture than the one you are wanting to give it?
The one and only,
Those who live in the past, are destined to insanity. Those who live only for the future, will be slaves to their ambitions.
Those who live in the moment... only they, are truly happy.