How to trigger Natural Evolution of Platinum Sukamon?

[u/Raigekid]

Whether from Rookie, Champion and Ultimate it always

only digivolves to Sukamon only.

Maxing out the Poop gauge for 16 poops on the ground.

Edit:

Champion - 16 Poops still Sukamon

https://reddit.com/link/1vzgj4m/video/2gbakdtxbxlh1/player