New to Unreal, bit confused

Hey I am learning via college and free time to make video games in unreal. My tutor taught me about how you can see the blueprints as you test the game, I’m not there for a few days and wanted to know what mine meant? they are flashing when I view them>? i can upload a small video if that would be helpful?

The execution lines pulse to show the direction that the code is happening so that you can easily debug and see what decisions are taking place in real time.

I assume thats the flashing you are talking about. If you watch some of the Epic Youtube tutorials this will be explained very early on.