When an entity is inside of a block, it falls through the entire world into the void.
Steps to reproduce
Stand on a block
Do this command "/setblock ~ ~ ~ stone" any non transparent block works
Watch yourself fall through the whole world.
This can also be reproduced by placing falling blocks and letting them fall onto you.
Linked issues
is duplicated by 34
MC-135397
you can clip through the whole world in survival (also other entities)
Resolved
MC-135405
Fallingblock causes player to be pushed through world
Resolved
MC-135411
Noclip while inside a block
Resolved
MC-135415
Suffocating makes you fall into the void
Resolved
MC-135427
If a falling block such as gravel, falls on top of the player, the player is dropped through solid blocks until they hit an opening such as the void or a cave.
Resolved
Comments 5
This is a bit more detailed of a description of what is happening.
When gravity affect blocks fall on player, player falls through blocks under them. If there is no cave under the player, this means that they will fall through the world, and die in the void. This can happen in all dimensions, and in all world types.
Important note, the player does not have to be directly beneath the gravity affect block, they simply have to be touched by it. Also, the falling block only needs to be 1 high, and can be at eye level.
To recreate, stand under a stone floor with sand on top, and remove the stone, letting the sand or other block fall. You can also walk into a falling sand block or other block, and the same thing happens.
What is expected: player remains in position if block can not push them out of the way, and the plater will take suffocation damage.
Not fixed in 18w31a. Please reopen.