BDS-17953Structures disappear when you get close after they first render in
Playing on my server I've discovered that new structures (in unexplored areas / unsaved chunks) initially render in but then vanish when I approach them. It's like the game shows me what should be there whilst it loads it in properly, but then decides that it won't generate them after-all.
I've not tested all structures, but it has affected all villages, ruined portals, woodland mansions, pillager towers, and end cities I've tried it on.
I have downloaded a backup of the world to test it running on my device instead of the server and it doesn't happen when running directly in Minecraft on my device.
I've also tried on the server with a fresh world that has the same seed in case it was my specific world misbehaving, and I've tried another seed with a village and a woodland mansion next to spawn.
Whenever testing on the server the structures vanish when I get close after they initially appear.
Environment
Server version 1.19.51.01 (runs on CentOS 8 Stream / Rocky Linux 8 according to hosting provider)
iOS client version 1.19.51
Created Issue:
Structures disappear when you get close after they first render in
Playing on my server I've discovered that new structures (in unexplored areas / unsaved chunks) initially render in but then vanish when I approach them. It's like the game shows me what should be there whilst it loads it in properly, but then decides that it won't generate them after-all.
I've not tested all structures, but it has affected all villages, ruined portals, woodland mansions, pillager towers, and end cities I've tried it on.
I have downloaded a backup of the world to test it running on my device instead of the server and it doesn't happen when running directly in Minecraft on my device.
I've also tried on the server with a fresh world that has the same seed in case it was my specific world misbehaving, and I've tried another seed with a village and a woodland mansion next to spawn.
Whenever testing on the server the structures vanish when I get close after they initially appear.
Environment
Server version 1.19.51.01 (runs on CentOS 8 Stream / Rocky Linux 8 according to hosting provider)
iOS client version 1.19.51
![[MCQA] Kinga Izdebska](../../../data/avatars/users/18949.svg){kind=small}
![[Mod] OcelotOnesie](../../../data/avatars/users/43220.png){kind=small}
I've been noticing this behaviour too, and from what I can tell is it's to do with client chunk generation differing from that of the BDS server.
Playing on a PS4 for example, I see lots of random effects such as this when exploring a world running on a server, where distant chunks as I get closer appear to regenerate differently when closer, and from that point on they remain static as they generated. I see this less on other platforms (Switch/PC), but it is still there. It feels very much similar to both MCPE-162424 and MCPE-39439.
Setting the server option
client-side-chunk-generation-enabled=false
seems to completely eliminate this, however you will then run into BDS-17527
There seems to be a few other tickets about this same behaviour too (BDS-17953 for example)
Sorry, false alarm! Seems my server softaware developed an issue at some stage and a fresh insteall of the 1.19.51.01 files fixed the issue.
As per Reporter's comment closing as Cannot Reroruce.