Noob Q: Get reference to spawned actor

Hey guys, first few days of UE4 for me so this one should be pretty simple.

I have a projectile that gets spawned on-click, and a target that gets spawned when the player enters a trigger volume. In the blueprint for the projectile, I want to check if it hits this target (again, isn’t in scene from start).

I tried doing this by checking the tag of the EventHit other actor but doing that gives me about a million “Error Accessed None” errors as soon as a projectile spawns. This method works fine for checking if the player is in the trigger volume but whatever.

So, how do I check if the projectile has hit a spawned target? I am now trying to do an equivalence check for the actor but I don’t know how to get a reference for this spawned target.