Spot light not casting shadows onto toon shaded objects

I have the rendering path set to “deferred” in the player settings; tried “soft” and “hard” shadows setting on the spotlight; the materials are set to cast and receive shadows; quality setting is “fantastic”.

Am I doing something wrong, or is this kind of dynamic lighting still a pro only feature?

In the screenshot, you can see that the sphere does not cast a shadow onto the cube, and neither of them cast one onto the terrain. A directional light did work.

Ok it seems this is just the way the toon shader behaves, PLUS I had to change the bias values on the light. If you came here with the same problem, someone wrote a modified version of the toon shader which seems to work as far as I can tell.