Shadow artefacts when rendering with bevel-modification When rendering with bevel-modification some parts appear non-beveled on the shadow side of the object.
This doesn't appear when using the &quot;manual method&quot;, ctrl-b. File attached: spraycover.blend
What is going on, how can I prevent this?
It is possible that you have duplicate geometry, or that the corners are made up of 2 unconnected faces. To clean up your mesh, you can try Mesh &gt; Clean Up &gt; Merge by Distance. This will &quot;snap together&quot; all vertices that are within a certain distance of each other.
If this doesn't solve your problem, you might have to manually inspect the faulty areas of the mesh. Select the  vertex you are having issues with, and move it out of the way to see what's going on. This might help you understand how the mesh is connected, and what is causing the problems.