Bug List

''This is a list of Bugs currently in-game. If you find a Bug please list it below to allow others to see.''

Keep in mind, Just because a bug can be exploited doesn't mean you should. Duplicating items may seem like a good thing to do at first, but it can rapidly make the game a lot less fun to play.

General:

 * When a sand block falls instead of changing into the falling object it destroys itself and creates falling sand at it's position and since it's programmed to give the player collectable sand whenever it's destroyed this causes sand to duplicate when it falls.
 * A one block high space allows slimes to spawn, but also allows them to jump through the floor as most slimes are two blocks high
 * NPC's will occasionally occupy the same shelter, and may continue to occupy that general area even if it is no longer 'suitable' for NPC's
 * Blowing up a chest with TNT causes the chest to duplicate 10+ times. Also, forming obsidian over the top half of the chest leaves you with the bottom half of the chest that can be "removed" infinitely, allowing for infinite free chests.
 * Upon forcing the game to quit, (ie Windows Task Manager), the game saves the items in one's inventory, but any blocks placed or changes to the terrain will revert to the last time the game was saved correctly.
 * The lighting effect of a meteor crash site will remain even when all meteor blocks have been mined.
 * Meteors will crash onto very thin bridges of blocks, essentially wasting the event as there is usually not enough meteorite created to spawn meteor heads
 * Placing a torch onto a long medium wild grass (whatever it's called) next to a door causes the torch to duplicate. This bug can be exploited to have a lot of torches w/o getting a lot of slime gel. (Atleast one torch is needed to exploit this glitch)
 * Placing two doors adjacent to one another and repeatedly opening and shutting them may lead to one of the two doors glitching, which results in spawning an infinite number of duplicate doors whenever the adjacent door opens or closes. Though extremely tedious, it is possible to exploit this glitch to earn significant amounts of gold, as each stack of 99 doors is worth nearly 40 silver.
 * grappling onto the middle of a door (just above the doorknob) and opening the door will fling you forward at the grappling hook's pulling speed
 * Selling to a merchant (tested on gun dealer) when less than 100s in inventory but the sale brings you to over 100s, the silver rolls over back to 0 and you lose the 1g.
 * When the game crashes and the player returns to the server all exisiting chests in the game are unopenable.
 * When the player gets large quantities of water flowing, the game lags a little bit and there are holes in the water flow. Also, water (and lava) in freefall during this event fall EXTREMELY slowly. Discovered while bringing large amounts of water down to hell for obsidian mining.
 * Minimising the Game while in a world will result in an extremely long wait time for it to be restored and playable. (Had it minimised for ~30mins, took the same amount of time to restore and be playable)
 * Attempting to open a door in the same instant as an NPC causes the door to disappear.
 * Some versions of the game do not have the rocket boots available.
 * If an NPC spawns but is unable to get to its room(eg needing to jump onto a platform to get there) it walks around the building opening and closing every door it can find in a vain attempt to get to its room.
 * It is possible for a small puddle of water to turn into a never-ending waterfall when the bottom is dug out.
 * When the nurse stands on a chest and you goto the Nurse for health and you click on her it then brigns up her menu for 2 secounds then brings up the chest
 * Jungle shrines can be generated in lava pools with no chest inside them. (Screenshot)
 * Jungle shrines can be generated in the sky (~15 blocks above the ground) (Screenshot coming soon)
 * Sometimes a huge amount of mud can be found at the surface if a jungle is too close to the surface.
 * Fall damage is inconsistent when landing on anything 1 block (somtimes more) thick.
 * If a chest has anything in it the game won't let it be mined until it's emptied.
 * It appears that you can make a spawn point with Dungeon Bricks, but not Dungeon walls. (taken from Dungeon Block)
 * Hellstone walls cannot be picked up. (taken from Hellstone Wall )
 * Dirt walls cannot be picked up.
 * When on a title screen byproduct clicking outside the game window will pause the clouds but not the logo or the sun/moon.
 * When wearing copper greaves the character's "place" is darkened and is making it harder to focus
 * closed doors can sometimes let people in
 * Note: The Molten Fury "lights wooden arrows ablaze" and shoots them as Flaming Arrows, however these arrows will still deal Wooden Arrow damage. (found in Molten Fury)
 * demon eyes can go through 1 block thick dirt

Gameplay Multi-Player:

 * There sems to be a problem in the Client-Server synchronization causing monsters to suddenly teleport to another location when they are dealt damage by the player. This can make it dangerous to fight creatures online because they often teleport into the player, doing damage when the knockback should have kept the player safe from damage. Server specs don't appeaer to help this very much, so it's most likely caused by buggy net-code in the game. This is particularly noticeable for Meteor Heads.
 * Multiple 'Nurse' spawn when more than one person gets a life upgrade on the server.
 * Stars that fall but are unobtainable. Some work normally but there are some that fall in clusters of 2-3 next to each other but players are not able to grab.
 * If you place a chest onto any block type, break it and try to replace it onto the same 2 blocks, it is unplaceable. The block type doesn't seem to matter. Relogging from the Multiplayer server seems to fix this issue.
 * If a client's program crashes or ends unexpectedly, the client's character won't save and will still have the same inventory that they had at the start of the session. This can result in items duplicating or disappearing entirely. (In a situation like this, the person running the server may want to revert to the backup world)
 * Sometimes, there is a hole where you can fall the to bottom of the world. (No evidence whether this happens in single player as well.)
 * If you minimize the server window, the time goes faster (when clicking the server window button in the task bar, might only happen on Win 7/Vista.). It looks like the sun and moon "teleports" forward. And the monsters is super fast. Maximizing the server window fixes this (Tho you can minimize it again by clicking the minimize button on the server window, not in the task bar.).
 * Game crashes when you break 4 Shadows orbs in a row.
 * Game crashes if you save your spawn point in a bed and reconnect, the server must be reopened.
 * If the players fail to kill Skeletron, the old man does not respawn. This happened to me when we both died. We started early in the night and there was a lot more of it to go, so that wasn't the problem. We still get attacked by skulls in the dungeon itself. -This bug seems to occur if you set your spawn location within sight of the Skeletron (e.g., right within the surface part of the dungeon where the Old Man is/where you fight Skeletron) and lose the fight (e.g., everyone being dead at the same time). Whether or not this can occur regardless of player spawn location is unsure.

Visual:

 * Alt-tabbing in and out alot can cause funky colors, alt-tabbing again fixes.
 * When playing a world for the first time there is a chance no Hud/GUI is displayed. (Can be fixed by pressing F11)
 * Moving to fullscreen causes all things to speed up i.e. the sun and moon move at an increased pace. The cursor also speeds up, this also affects single player. (multiplayer not known) It is widely suspected that this is because your monitor's refresh rate overwrites the games when running it in fullscreen.
 * When running the game in windowed mode, clicking on another window that doesn't cover the Terraria window will cause any light from Mining Helmets to vanish (does not occur in multiplayer). Clicking back into the window allows the Helmet to light correctly. This does not affect the game, as it pauses when another window is clicked.

Audio

 * Both the day theme and night theme can play at the same time if the change happends on the instant of the current song being re-looped. This will last until the theme playing before the change of day/night starts a new loop.