Subdivision works for values up to 5

[styoe]

Can you please help debug why the subdivide Subdivide(6) returns an object like this:

[Josephblt]

Hello @styoe. Not the developer but I can answer this.
By default a Unity mesh can hold up to 65535 vertices (16 bit) .

To workaround this limitation I suggest two options:

• Change the mesh index format to 32 bit:
  mesh.indexFormat = UnityEngine.Rendering.IndexFormat.UInt32;

• Subdivide your mesh in to smaller groups that are kept within the 16 bit limit. Create as many meshes as needed.

You can find more about this on the Unity Documentation:
https://docs.unity3d.com/ScriptReference/Mesh-indexFormat.html