If you followed the installation correctly, and installed in correct folder~ When you put a tuft on a feline nails appear only for
Cheeck Mane
Elbow Rump
FullArm
Full Tuft
Full Tuft Fade
Back Mane
Back, Cheeck Mane
Back, Full Mane
For canine it shows no matter what
If it dosent for any of those ways that means you didnt correctly install~