Texture doesn`t seem right at an angle?

Hi everybody, I got this stitch brush from polligon.com but I cant get it to work properly. From the front view it looks ok. ![front|690x427](upload://w4qA7obVNq2zMnyCo1f7Y3LNJxC.jpeg) But looking at an angle it looks like this. ![angle|690x437](upload://vbEh4Rw7ArGz95TkV5VRKuD2ldu.jpeg) I think its a problem with the height information or something like that but I would realy love to make it look like a stitch from which angle possible (hope you guys understand my englisch)