I'm trying to test if a item matches another item, pretty simple. The items have a display name and NBT. Using ItemStack#isSimilar(ItemStack) it's pretty easy. But once I add NBT, it works except when I reload my server. Then it doesn't work, and only works for the newest version of the item (I give the item onEnable to all players, I set the NBT the same exact way each time (I don't change the code at all)). When I don't add NBT, it works. Anyone know why/how to fix? If so, I would like a solution that takes into account NBT values. I'll be able to respond in about 20-40minutes, sorry for the delay!