The bug
In new world generation there can be floating mineshafts. In 1.12.2 this doesn't occur.
The exact reasons are unknown and this cannot be reproduced reliably, see the comments of this report.
Seed: 18w06a
/tp @p -623 82 993 200 40Linked issues
is duplicated by 3
Attachments
Comments 8
Hmm... Now I also can't reproduce. Core of mineshaft stays as was, but no more flying mineshaft. Might be caused by MC-125047, but I can't recreate this tho.
Closed as a duplicate of MC-125047, as that bug is most likely the cause.
Can confirm in a brand new world. Not a duplicate of MC-125047.
Seed: -9144014475768710727
/tp @s -104 77 178 149 21Although like this ticket, I can't reproduce it afterwards.
Could reproduce it in 18w06a with this seed as well, however the second time different parts generated floating and were partially cut off at chunk borders and in the middle of chunks.
I could not reproduce with Neko's seed. Tried twice - with TP and by creative fly. It's really inconsistent so will be hard to test. Can you share minecraft setting (maybe render distance affects it or something) and steps to reproduce?
Cannot reproduce anymore either in 18w06a with that seed. My render distance is 12, I think it was 12 as well when it happened, but I am not completely sure. Not sure if this is relevant but a cave spider spawner which I saw in one failed try was not there in another failed try.
Cannot confirm for 18w06a, can you please make sure that you are not experiencing MC-125047 by creating the world right after you started Minecraft?