Minecraft Wiki:Issues

This page's purpose is to list all the SSP bugs players have come across. Alternatively, see Known bugs in Survival Multiplayer.

World Select

 * Changing resolution on the World Select screen causes all buttons to appear twice.

General

 * A glitch has been observed where, occasionally, a given area of blocks can revert to their original state, partially or completely undoing any construction or mining that had been done in that area. Usually this happens after a long excursion into one of the natural cave systems.
 * You are unable to directly swap items in your inventory when the two items are same. This is important if you would like to swap similar items with different durabilities.
 * Sometimes you can see through everything and it happens on all your games. The way you can get rid of it is close Minecraft then open it then it will work fine.
 * One block, non-bedrock blocks in the Bedrock level lead to players being able to dig through the bottom of the map.
 * Iron bars can be collected, but don't appear in inventory.
 * if you wait a lot of time after map chunks are generated and then continue forward causing the game to generate new map chunks, it will cause weird structures which don't even connect properly with the map. Sometimes even causing mountains which are in a sense, cut in half. Furthermore, if one chuck ends in an ocean, and the other starts of with land with an underground cave in it, the water will not enter the cave
 * Glass blocks do not displace drops like other blocks do (Smashing)
 * When destroying a Furnace, unlike Chests, anything inside the Furnace will be permanently destroyed.

Arrows

 * Arrows hitting doors can float if the door changes it's open/closed state.
 * Arrows can seem to be floating when hitting fences.

Boats

 * When entering a boat on ground it will show a splash effect similar than on water.
 * When falling on a boat there is no fall damage.
 * If you manage to stand on your boat while it is under water the boat won't move to any direction.
 * When entering a boat and holding an usable item the item will be used/spawned. (Food will be eaten, another boat will be spawned, etc...)(this happens with ANY item. not only boats. EG, furnace, workbench, chest etc. etc.)
 * If you go under a water stream your boat will accelerate and rise towards the sky.

Chests

 * If you open a chest at the same time as pressing a movement key, your character will continuously move  in that direction until you click on the chest again. This is also fixed  by pushing the same movement key after leaving the chest menu.
 * Chests sometimes revert contents to previous configuration. Opening a chest,  modifying the content, exiting, then going back in displays the items  the chest had when it was first accessed. This causes newly placed items  to be lost and removed items to be duplicated.

Fences

 * Fences on top of blocks will have all faces on its underside's black.
 * Stepping on a fence is counted as an illegal operation.
 * Occasionally placed fences will become invisible.

Jukebox

 * When inserting a record  and removing it before the song stop, the Jukebox  will duplicate it,  Although, only one of the record will be pick-able,  the second will  remain stuck in world and eventually disappear after a  certain amount  of time. It is possible to abuse this bug to spawn  hundreds of records.

Minecart

 * If spawning many mine carts on a small track, they will gain momentum from colliding in to each other.
 * If there is too many mine carts in a world, the game will crash.
 * It is possible to gain unending speed for a mine cart by abusing the bug by spawning many carts on a small track.
 * When destroying a mine cart, you will fall one block under the ground.
 * Sometimes moving Minecarts disappear entirely.
 * Trying to exit in a two block high area can cause the player to suffocate within the minecart.

Mobs

 * If a mob is riding a mine cart and 2 (or more) mine carts get stuck in  each other, after destroying or moving the carts away from the other  carts the mobs will be invisible.

Paintings

 * If a painting is placed and immediately removed, there is a chance that the picture frame will get duplicated.
 * In SMP, a painting cannot be picked up once removed. Also, you cannot see other people's paintings.

Stairs

 * Placing steps and then destroying them doesn't give you the stairs back, only a Cobblestone or Wood block.
 * Attempting to destroy stairs will sometimes destroy the block behind them instead.

Water
(To clarify this a bit, on the surface, you are blocked from placing a block on yourself, underwater, this blocking does not exist).
 * If underwater you build a block at the same place where you are and you will suffocate until you move
 * It is possible for multiple water currents to crash against each other and create an inescapable riptide. Not only will this rip tide hold you in one place, it will also throw you from a boat if you are sailing it.