At the bottom of your material file, do you have this section?
material preset_8_equipMatL
{
technique
{
pass
{
texture_unit
{
texture preset_8equip.jpg
}
}
}
}
material preset_8_equipMatR
{
technique
{
pass
{
texture_unit
{
texture preset_8equip.jpg
}
}
}
}
If not, you have to add it.