Sorry for reviving a truly ancient thread but it seemed relevant. I know the Multi Shader is limited to sixteen inputs at the moment and maybe in the furtue more but for now is it possible to plug another multi shader in to the first input node, hence doubling the amount of available shaders. I suspect not but I ask just to confirm that the error is not down to me rather than the inbuilt limitations. Below is a screen shot of how I would expect it to work ... but it don't !
The model is a direct export from poser, everything loads in like a dream till you get past the 16 shader limit.
Thanks
Richard