Hi Im wandering if it's just my server but all bukkit servers at this time, but whenever I try to make a tnt cannon the tnt will explode but not shoot off the other bit of tnt? If this is common in your server please tell or if you have a fix for this issue also share here, thanks
Must be your cannon. It isn't bukkit that affects TnT. It's Minecraft in general and that cannot be changed.
