Firework malfunction ? or is Disney testing something new ?

I had stayed at the Howard Johnson hotel this past sat 1/25 for my Birthday with a balcony view and around 1:03 am had seen fireworks go off then again maybe like 5 mins later why do you think that is ?fireworks that didn’t go off at the 9:00pm show so they had to pop em ? Or do you think Disney is testing something new ? Or did Disney just do it for me cuz of my birthday 😂 not complaining I was freaking hyped