Enemy AI: Making the Enemy Larger - Unable to deal damage to player

I have a question. I am working on creating a boss for my game I am working on. It is a bit small in its default size. When I increase the size of the enemy and test the hitnotify, my player’s health does not go down. The enemy isn’t dealing damage.

Any idea to what I can do to fix this? Or would I simply have to keep the mesh at its default size in order for it to deal damage to my player.