3D max light tracer problem

[baz1701]

Since I have been reducing the poly count on the K'tinga 3D max freezes if I try to render out using light tracer.

I have tried removing the textures. export to 3ds and Nif and importing.

It is the after section. renders ok without light tracer and with radiosity

Should point out it is working fine with other models jus this one.

Any ideas?