It takes more than a day to clear your head, re-evalute things, and come up with something new, especially if you had a certain flow but got blown out of it midway. Sometimes it's also better just to scrap everything, than trying to build up on something and ran into the same problem again. While the rendering does take up most of the time, it also very dependent on the scenarios that plays out. If they change them significantly, then the renders must change with them as well. Honestly, I don't think the month break is a problem, since there are other issues in the game that should be solved anyway, and they might take the time to adress them as well.