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When I play on my Hard difficulty survival world, part of the ceiling of my blacksmith's keeps missing blocks.

What's interesting is that it looks like a creeper explosion, but the fact that I never saw any creeper there, and that it only happened in that spot, made me think that the cause may be something else.

Before...

and after.

1 Answer 1

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The wood is catching on fire and burning from the lava.

If there is an adjacent flammable block (e.g: wood above), lava can create fire in air blocks in this shape:

5*1*5 on top of 3*1*3

You should be able to move your roof up one, make it out of non-flammable blocks, or put blocks such as torches in all the spots that fire could occur in order to block it.

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  • 6
    Ah, yes, the famous Minecraft fire strikes again.
    – Dragomok
    Commented Nov 5, 2016 at 19:35
  • Making your ceiling higher or your floor lower would work too
    – DonyorM
    Commented Nov 6, 2016 at 5:00
  • So burning torches are fireproof? Minecraft logic. Commented Nov 6, 2016 at 14:19

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