No Phage proc on Darius Q [GAMEPLAY]

Not sure if it's a bug with Phage, or with Darius Q, but occasionally I wasn't getting the movement speed bonus from phage. I made highlights of the two instances that I remember it occurring. Both were from the same game, and both happened to occur when using my Q Will do more testing if I notice it on other champions/sources of physical damage

Mind the volume, league highlights still make a screeching sound. (plz fix this too)

https://youtu.be/JHhqg9owWp8 https://youtu.be/xiTLTiIa4xw

Edit: SOLVED. I'm dumb, phage doesn't proc on all physical damage; only black cleaver does