Help!! What is this mean!! Please

[PowerMax]

Error while building scene: ModelLoadingStreamHandlerExcep: Triangle material_index is out of bounds. (material index=4)

What is that mean..... Is it means something is out of the limit of quantity? I should reduce some stuff? Or something is out of certain thing? I should find it and cut that off?

[Headroom]

It would probably help to know with what modeling application you work.

[CTZn]

Exceptions are always caused by an exporter bug, that's why it is best to report such errors into the plugin thread. They should not happen.

An usefull bug report would include a scene file reduced to the elements causing the error, or would come with a reproductible manipulation sequence causing the error. At a minimum, with a description of the scene, thanks.

The error means that the scene definition is pointing Indigo to an element that doesn't exist, probably an additional UV set.