Invisible relief in game on a module

[FS Voodoo]

Good morning, everyone,

 

My team and I are having a little trouble with one of our mods:

 

We made a texture for our Wellington BH-7 mod and created a relief file but once exported the relief is not visible in game.

 

Does this file need to have a special name or something? Do you have an idea?

 

Thank you very much :).

 

Voodoo.

 

 

Here are images of the mod with 3DsMax then in game :

 

 

[razo+r]

Is the bump texture located at the correct location?

correct file format?