Collision + Graded Target Events

Having a bit of an issue with a target range I’m setting up. The mesh BP has normal mesh collision (works ok), and in the BP, I have set up 1 main collision box (Overlap) which will cause the target to move. This part works. However, the other collision boxes to see where the player hit the target do not fire off. I’ve tried OnComponentHit, OnComponentOverlap, keeping score inside the mesh BP, using dispatchers to keep score in the level BP, nada. I’ve watched the various things firing off during simulation, and the “score-card” collision boxes do not fire off. Here are some pics of the mesh / BP:

Any ideas?