This past couple days I've been experimenting with fireworks. I've been using the regular fireworks that appear in the inventory and those work fine in the game. But when I made special fireworks with fire charges and diamonds to add effects like sparkles and twinkles they crash the game every time. I've tried it with different types but it always does the same thing. I've updated it to the most recent version and this problem has continued to appear. I hope this helps and it can be fixed. Thanks.