I fixed it!
[image: 2f081abe-db5c-4b52-bf23-992fcd527b82-image.png]
The problem lays in the Export of the dds File in Photoshop. You need to check the box "Mip Maps". Just set it to Auto and it works just fine:
[image: dd07fcc6-51ad-43ad-9601-7d46e840cdd9-image.png]