Same type fireworks are allowed to stack in vanilla minecraft but in Empire Minecraft, you can stack them but they unstack themselves. This is very annoying because it means you can't sell more than 1 firework in a store. If they were stackable you would be able to stack one type to 64 then make a shop for [slot 1] but alas, they don't stack.
I'm looking at stacked, edited fireworks right now so I think that your fireworks must be broken. Did you make them using the same type of firework star? I had an issue with that when they first came out.
If there is the slightest difference they will not stack. There however is a random bug that can change the data value of an item stack which prevents it from stacking with the rest.
Hmm weird. Logged on today and tried to re-stack the same two fireworks and now they do. That's weird, but at least it works thanks!
