The structure Ancient City is still not generated under already existing chunks (which were created with 1.17 and earlier).
I have a 1.17 world with a diameter of 12,000 blocks. When I optimise this world with 1.19 pre 1 and start it, the Ancient City structure is only generated outside my existing chunks.
EDIT:
I tried it with another world (radius 2000 blocks). The structure is not generated there either.
You can download the world here (Expires after 30 days and I can upload again if necessary):
https://ufile.io/nanmjoks
Linked issues
duplicates 1
Comments 9

The world is much too big for that. You can create a 1.17 world and pre-generate it.
I tried it with another world (radius 2000 blocks). The structure is not generated there either.
You can download the world here (Expires after 30 days and I can upload again if necessary):
https://ufile.io/nanmjoks
I hope this will be fixed before the release. I had skipped 1.18 especially for this purpose.
This also affects the structure Mineshaft.

When is this going to get fixed 😞 I'm not updating until it is...

This might be related to MC-253417?
Yes this is the same in MC-253417
@@unknown
I have since updated because I do not believe that it will be changed in time. I am also not willing to wait for more years. It is a pity that the Ancient Citys (or Mineshaft) are not generated under existing chunks. It's also strange that they set your ticket to Won't Fix without any reason.

Thank you for your report!
We're tracking this issue in MC-253417, so this ticket is being resolved and linked as a duplicate.
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