To reproduce:
1. Create new project
2. Import attached sprite
3. Set camera to orthographic Projection of size 5 (default one)
4. Set all boarder in sprite editor to 10
5. Apply changes
6. Add Image game object to scene (UI->Image)
7. Set sprite as Source Image on Image (Script) component
8. Set Image Type to Sliced and unselect Fill Center option
9. In Rect Transform component set Pos X to 37.9, Pos Y to 4.28, Width to 23.86, Height to 25.69
10. Notice that sliced images doesn't work correctly with orthographic cameras with a small size at world coordinates.