[Gameplay] Warwick Bloodhunt passive not triggering after respawn

As of Patch 7.11, After Warwick has been killed and respawned (EDIT: or after he has just learned his W), he does not sense any champions (unless they are manually detected by hitting W) that are under 50% health until they take damage again or they recross the 50% threshold.

1. Die as Warwick and respawn.
2. If an enemy is under 50% health, they aren't blood hunted until one of the above events occur.

EDIT: Whether the enemy is visible or not does not matter. This has happened to me in all my Warwick matches.