Black lines on textures

Hi! Im uploading a photogrammetry scan from reality capture. The built in upload functionality crashes, so I exported fbx (export vertex normals: yes).

It uploads to Cesium Ion fine, but when I look at the model there are black stripes along all the edges, its probably something with the LOD generation I would think. Zoomed all the way in they dissappear.

I’ve also tried with larger texture gutter up to 16px, but I get the same artifacts.
Hope someone knows anything about this :slight_smile:

Screenshots (Last one is reference from RC):