Most successful days/events tend to include some missteps and some unhappiness.
There’s no point being overly reactive to the inevitable misses. It is hard to get everything right and it is near impossible to make everyone happy. Perfect days/events don’t exist. Our memories just omit the imperfect details over time.
So, even on a good day/after a successful event, expect the good to be 70% of the story.
Then, acknowledge the unhappiness, learn from the missteps, and move on.