Just in case you haven’t figured it out yet (your post is almost a year old, neeeecropoooost), it has to do with the texture not having a 512x512|1024x1024 or a power of two size, which screws up the mip mapping (laying out the texture tiles). Once you resize it to one of those sizes, it should work fine.
I really, really hope you had already found out about this 