Okay. I think I might have found a clue. I went looking for band normals and I looked at that specific area in Edit mode. And I found that in that spot there is a weird topology. That I didn’t spot before. Not sure how I would describe it but it seems one of the faces is twisted in a weird way. Creating what seems from some angles like a face without an edge. I have some Prtscrs here: https://drive.google.com/drive/folders/1JC-7ySveuvtWDAkO9lmGjTbtICpRvZFe?usp=sharing
It is like if you would number your vertices in order clockwise. 1, 2, 3 and 4. Then 3 and 4 would be in the same plane. But 1 would be higher than 2, making like a fifth ghost edge which isn’t there. So where this twists the subsurface turns black. Not sure if this makes any sense. I hope the prtscrs make more sense. Any idea how I could solve this, preferably without destroying my eyelid?
