I am trying to render a simple scene with a sphere, grid, teapot scene with a skylight and caustic light and I am getting this warning:

mantra: Unknown argument ‘filter_angle’ in call to ‘illuminate@B’

Anyone one knows what it means?

Anyone?

This warning existed in some earlier builds of H13 but it should be fixed in the latest build. Could you verify? If it's still broken, post your .hip file and I'll take a look.

Andrew