Hello, the fireworks bug happens when you finish exploring the places, then you are teleported to the front of the hut, when the teleportation to the front of the hut happens while the special event is on, you are teleported, the screen goes dark and the game closes.
The fireworks use a particle system based on the CPU, I couldn’t test this on a variety of devices, but it might be possible that some android devices will not have capacity to handle the particles.
I can’t confirm for now, but I’ll try to make some further investigation on this. I believe the 4Gb of RAM is sufficient, but I’m not sure :/.