Thank you for your response. The problem is that when the learner clicks on the state on the base layer, it turns black but then when the subsequent layers are revealed and/or when it loops back to the base layer at the end (per a trigger I set up), it does remain black. The one example where you could quickly see this is on the covering your cough box (it only reveals a couple of layers so it is quicker to see what the issue is).
I don't know how to make it stay black for all of the layers and also for the base layer to be black when it loops back.