Thank you. Then I will stick with a workaround and place some spot light around the player mesh, which all point away from the mesh.
It’s not the same, but changing all light channel on all objects is too much of work.
Also if you forget two change something when adding new meshes you will have a bug on lightning directly.
If someone read this question and has another good idea how to ignore the “mesh of a blueprint” of a “point light in the same blueprint”, would be nice to hear something.
Edit: this was a bad idea, turned out that looks incredible bad when being close to walls. So, no solution at the moment.