Hi all - I’ve found a bug that was introduced in 4.1.0 and persists in 4.2 alpha. When merging meshes the normals of the produced multimaterials appear wrong. I’ve created a Playground to demonstrate the problem. You can recreate it by switching between v4.0.3 where it works and a later version. You can see the effect on the windows and tables in the scene
any ideas on a fix, or is it a genuine bug?