Destroy actor working on playable char not enemies

I have been following the twin stick shooter video tutorial series. The game was working fairly well and I was nearly done the series when i tried to test play again and noticed that my enemies no longer were being destroyed by the projectiles. I printed the health of the enemies to the screen and the health will go well below 0 and still not be destroyed so the damage is impacting the health.
The event graph for checking the health of the player character and the enemy is effectively the same (save the call to respawn the player character) yet the player character is destroyed when health reaches zero while the enemy character is not.

Any help would be much appreciated.