Armour Model 3dsMax problem

[nivee]

Hi guys,
After changing the desing of my armour in 3DSMax there are missing "mesh" elements in GrannyViewer.
From what I noticed, after the changes, when I save the model,- "mesh" elements have different name comparing to the original model.

I need help with the correct way to save this model.
Pics:
Before changing and saving:

 Spoiler

After changing and saving:

 Spoiler

Thanks in advance.

[Nick]

#moved