The projectile is hitting the trophy object, which has no health (yet) and not triggering at the subsequent hit on the lizard. I will try using layers to see what I can do, but I don’t know why the lesson isn’t having the same problem. I tried taking off and putting on RigidBody2D on the trophy, projectile and lizard, but no success.
EDIT: No, that didn’t work. The projectile now doesn’t interact with the trophy, but it still ignores the attacking lizard. It is like once it starts using the attack animation, it stops having a collider.
EDIT2: Fixed it. Totally embarrassing. Way back in the lessons I didn’t like that a stray projectile could kill the lizards as they were gating in, so I modified the collider with animation events. This was an artifact of that.