If you put on an APO avatar and your APO skin does not seem to be working (you see a skin with 'leaves' or any other restrictive graphics covering the private parts of the avatar, that means that you are wearing a General Audience skin over the APO avatar's skin.

To fix this, just go to the My Outfit section of your IMVU Inventory, and remove any skins that you may be wearing.

You can also use over my APO avatars any Access Pass Only skins that you may have bought from other Developers, since the APO Avatar is 100% fully compatible with other skins and accesories.