There is a lot of time between November election and innauguration day, plenty of time to review and fix whatever happened.
I don't think that's a reasonable assumption. It all depends on what happened. 9 weeks is not a long time. We're gonna get it all fixed and reschedule a national election the day after Xmas? I don't think so. Good luck getting 450 congress-people and 100 senators to agree on that.