This means the shader is missing. Select the material and change the shader to "Poiyomi" or "Standard."

Select the breast bones in the hierarchy and ensure the script components (PhysBones) are pointing to the correct root bones. You can find community-shared settings on platforms like Booth.pm or dedicated Discord servers. 4. Troubleshooting Common Issues

In Unity, go to Assets > Import Package > Custom Package and select your files.

For specific support, it is highly recommended to check the file included with your download or visit the creator's page on Gumroad or Booth.pm for version-specific updates.

Use the "Shrink" or "Alpha Mask" features in your shader to hide the base mesh where the new assets overlap.

If the "Breast Mafia" mod is an add-on, you may need to drag the new meshes onto the corresponding bones of the Sana V15A armature.

Find the Sana V15A prefab in your project folder and drag it into your scene.