when submitting TEXTURE filters to the library, your presets are converted to seamless automatically for display on the web site. your actual filter will still have your original presets, but the web site borrows your presets and converts them to seamless for display here.
also, if you dont include at least nine presets, the library/web site will add as many as necessary to bring the total up to nine.
i dont know if any of that accounts for what you're talking about, but you can evaluate it for what it's worth

If wishes were horses... there'd be a whole lot of horse crap to clean up!
Craig