[GAMEPLAY] - Sated Devourer not applying correct stacks

When jungling using devourer, the appropriate stacks per takedown appear to not be counted and devourer will turn into sated at a total of 20 stacks instead of 30. I just tested in two custom game and here are my results.

I ran through 2 custom games as Yi and devourer miscounted 1/3 of all takedowns. Devourer only counted 20 of my 30 stacks but still turned into sated when reaching the 20 counted (30 actual) stacks. Here are the 10 times where I did not receive a stack.

Red Buff- 1,1 Blue Buff - 1,1 Scuttlers- 1,1 (both scuttlers only counted 1 instead of 2. other times I killed scuttlers and received 2 points though) Wraiths- 1 Wolf- 1 Dragon- 2 (only gained 3 stacks for killing dragon)

This has occured in game everytime I've played for the past couple of days; I usually don't play sated champions though so I don't remember when I first noticed it). I believe there is just an error in the item displaying/reporting the correct number of stacks rather than a buff not granting a stacks.