STEPS TO REPRODUCE
1. Launch Character Creator 1.52
2. Navigate to Menu > File > Export to Obj > Nude Character
3. Select “Full Body” on Obj Exporter panel, then click Export button
4. Launch 3DXchange 6, load the exported Obj file
5. Only select “CC_Base_Body Mesh” in Scene Tree
6. Check the character's teeth

ACTUAL RESULT
Diffuse texture is missing

EXPECTED RESULT
Diffuse texture won't disappear

NOTE
It doesn't occur in Character Creator 1.4