The bug
Sometimes, when you walk over the corner of a pool of lava, it will deal a heart of damage to you.
How to reproduce:
Lay out a ring of blocks with a 2x2 lava hole in the middle
Stand exactly in the middle on the outer edge of one side of the ring
Angle your camera to exactly the middle of the inner edge of the ring on either side left or right
Move in a straight line forwards while in survival mode (notice you will not "fall" down, but still take damage)
For a more exact setup, use a command block with the following command:
tp @p ~-1.5 ~0.5 ~0.5 -153.3 36.0Related issues
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migrated
migrated
Is there soulsand at the corner?
migrated
Confirmed in 1.4.6 and reproducible with any kind of block. As seen in the screenshot standing at this angle and walking forward will damage you without falling into lava.
migrated
I think this was a feature added when the particles coming off of lava and the plopping sound were added.
CubeTheThird
Is this still a concern in the current Minecraft version 1.6.4 / Launcher version 1.2.5 ? If so, please update the affected versions in order to best aid Mojang ensuring bugs are still valid in the latest releases/pre-releases.
migrated
Still a concern in 14w08a.
wobst.michael
I tried really hard to reproduce it, but wasnt able to. Probably should be closing this issue considering its last update time.
wobst.michael
Tried to reproduce it once again with 16w04a this time, and wasn't able to reproduce it this time, too.
Can someone else confirm this being fixed?
CubeTheThird
Was able to reproduce it in 16w04a
migrated
Cannot reproduce in 1.10.2. However, you can get burnt when there is soul sand in the corner
kumasasa
Isn't this duplicating MC-1133 ?
migrated
I think only related because simply walking over lava shouldn't damage you.
FaRo1
I think the reason why this happens is the same as why you can sprint over a gap of one block length: If you are behind the top half of a block, you go up on it (like on slabs or from slab to block). This also happens while falling. If you sprint over a one block wide gap, you don't fall enough to be under that 0,5 blocks mark, so you go up again. The same probably happens here: You can go down enough to be in the lava, but high enough to go up again. The real bug is that you don't get the usual 300+2x ticks of fire (in this case 300 or 302) afterwards.
migrated
To reproduce, you must sprint over the corner of the lava at the right angle; you will not fall in but take half a heart of damage.
FaRo1
Command for reproduction: teleport @p ~-.5 ~.5 ~.3 45 in a command block, one block further to negative X and positive Z lava, all four blocks around the lava is a solid block.
muzikbike
Affects 1.13-pre6
Jack McKalling
Confirmed for 18w48a
Jack McKalling
Confirmed for 18w48b
Jack McKalling
Confirmed for 18w49a
Jack McKalling
Confirmed for 18w50a
Jack McKalling
Confirmed for 19w02a
Jack McKalling
Confirmed for 19w03a
muzikbike
Can ownership of this ticket be transferred?
Jack McKalling
I'll gladly accept this ticket if you don't want it anymore.
migrated
Confirmed for 1.14.1pre1
Jack McKalling
Cannot reproduce in 20w06a. Probably fixed
CubeTheThird
I am also unable to reproduce this in 20w06a (just tested 1.15.2 to be certain). Will mark as fixed.