Help with render blocking wpmucdn js files in Hummingbird


I am seeing this in Hummingbird’s “Remove Render Blocking Resources” section:

Remove render-blocking JavaScript:

I’ve turned on caching and tried to get it to use Cloudflare. I’m not sure A) why there are still some pointing at the wpmucdn and B) why these have been configured to render block. Seems like anything Hummingbird does should avoid causing issues for Hummingbird to complain about. Please advise. Other than this, I really love Hummingbird. I just want to get it running as fast as I can and I’m sure we can figure this one out together.