RIOT: Azir and Fervor of Battle

Okay, so I normally ran FoB on Azir before as sort of a stomp for late game DPS. However, today I realized that the indicators for physical damage don't show up with it anymore when attacking champions. (It used to show two damage numbers on each hit. Purple was the magic, red was the physical from FoB.)

Looking through the patch notes, I found nothing. Although, in the post-game lobby, I still had a relatively sizable chunk of damage that was physical. Is this a bug or some under-the-radar change? It still stacks. I just can't tell if it's applying the damage or not.

EDIT: Okay, so after playing a bot game, the first attack from a soldier stacks it as it would an ability. (2 stacks) After that, it does nothing. I can see why a change like this would go through, but why hide it?