I recently installed Dynmap, and viewing the map I noticed this 1-chunk wide strip extending directly south from spawn for about 16000 blocks. It can't have been generated by a player, otherwise it would be much wider than one chunk.

I don't have any plugins installed that would have generated this (I don't think?); I have done some manual world editing to merge two worlds together (using a custom, Prismarine-based tool), but that can't have generated anything.

Why would this have generated?

Plugin list:

  • Dynmap
  • DiscordSRV
  • EmojiChat
  • bPermissions

screenshot of minecraft Dynmap map

  • Someone flying really fast with an Elytra, perhaps?
    – ave
    Sep 24, 2020 at 8:56
  • i'm reasonably sure that would still generate out to the render distance though? Sep 24, 2020 at 9:14
  • 4
    @KaraBrightwell No, if they move sufficiently fast. Chunks right under the player generate at high priority, but the rest is pretty slow, and if the player moves away fast enough, they won't be generated. But the trail of a fast flyer wouldn't be nearly this regular - splotches where more chunks generated, breaks where nothing generated. A flying machine could leave a trail like that but it's unlikely it would do it on vanilla server; and would require some tricky conditions. See this for a similar case.
    – SF.
    Sep 24, 2020 at 9:29
  • Couldn't someone just set their render distance to one chunk?
    – Corsaka
    Sep 25, 2020 at 8:23
  • @Corsaka Even if you could at least 25 chunks will be generated (at least in 1.15+). Every 'isle' of entity-processing chunks gets a ring of lazy chunks and a ring of non-ticking chunks generated around it.
    – SF.
    Sep 25, 2020 at 8:40

1 Answer 1


try to see if someone was flying fast toward it. or check your seed. if it is the 32 bit integer limit, try generating a world by random seed. otherwise, the many plugins have made the world generating hard for the Minecraft server/world. also check the f3 screen and go to chunk cache and if the 1 chunk area is centered in 0,0 then it might be the worlds priority to generate a X and Y 1 chunk area, in case you are flying long distances via elytra to save lag and crashing of the application.

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