ArrayI did all named selections again, this time making sure that I extended all faces to their limits when assigning named selections. The result is the same, with the same surface mesh and errors. Still can't access the volume mesh step. Anything else that could be the reason for this? About the clustering of cells on the trailing edge, I think that is due to the curvature refinement to resolve the small radius.nAnd that solid boundary still remains. Fluent assigns a wall-type bc to it automatically, I don't know why.nnn