Baking: Artifacts with High-Res model on Creased Edges

[PixelFun]

When I try to bake with a subdivided model, I am getting weird artifacts on hard edges, that have been creased. See screenshot below.

Average Normals (on/off), Frontal and Rear Distance, as well as all other options do not resolve this.

What am I missing here and how to fix the artifacts when baking?

Thanks for any littel hint and help, appreciate it.