Go to docks > stats and you'll see a detail of where are you dropping frames, rendering, encoding, or network issues.

So terribly sorry for your loss Frog. My deepest condolences.

TL;DR lots of shit can happen in that timeframe.

I recommend you to watch Shirobako. It's an anime that like Keep your hands off Eizouken talks about how anime are made, but in the animation studio business environment, and explains perfectly not only how are they made, but also the struggles and problems they have to overcome to deliver episodes.

Great to see you back G!