Thank you for this awesome series. So, I’m trying to get A3C to work in the Atari gym domain. I was able to have it successfully work with Pong because it learns pretty fast. However, I’m trying it now with Breakout. The problem is that it takes a while to learn Breakout and training seems to slow down quite dramatically that it almost seems like it hanging up, but it’s not. I wonder which part of the code is causing this or has anyone experience this?