Problem of double d triangles and multiple overlapping faces with my model

[Naiman Broome]

Hello , I am wondering why my model has this problem

But my model in 3dsmax has the following count :

 

 

The model is made of two materials split with a seam to create two faces , but despit all works fine in 3dsmax, when I import in secondlife ...

apart the count increase in triangles etc, I also get double overlapping faces on one of the sides material, there is no extra geometry in the mesh though  , so In total I get one face for one material and other 3 overlapping faces for the other material , and when I apply textures works like a bom with one overlaying the other ... why that ? how can I fix it?

 

 

[Wulfie Reanimator]

"Polygons" are not the same thing as triangles.

A polygon can have any number of corners, which always get triangulated by the importer.

Edited April 18, 2021 by Wulfie Reanimator

[elainewatson]

I've been using 3DS Max for about 19 years now. If you press the number 7 in any viewport - it'll show you the number of triangles of the selected model.