Some chunks don't generate and terrain is not planes biome anymore

Server Implementation

Paper

Server Version

1.20.1

Describe the bug

Chunks failed to generate while flying, and the biomes seem to be taken from the seed not fixed to Planes. Console did not produce any errors or warnings, with PS debug config set to true.

To Reproduce

No exact reproduction steps. Seemed to happen out of nowhere.

Expected behaviour

After updating from v6 to v7 on a 1.20.1 server. Sometimes chunks would not generate in random areas. This only happened once and couldn't replicate it after trying.

Server was struggling to generate chunks while sitting at 200%, with high RAM usage.

Screenshots / Videos

Error log (if applicable)

No response

Plot Debugpaste

https://athion.net/ISPaster/paste/view/8e6df01833294d6a92b396d07a473a73

PlotSquared Version

PlotSquared version 7.0.0-RC.1-Premium

Checklist

• I have included a Plot debugpaste.
• I am using the newest build from https://www.spigotmc.org/resources/77506/ and the issue still persists.

Anything else?

Unable to verify if still happens on RC.2 because it's not easily reproduced

Start by reviewing the linked Plot debugpaste and comparing chunk generation and biome behavior between PlotSquared v6 and v7 on Paper 1.20.1. Reproduce the intermittent failure if possible, then verify that affected chunks generate and use the fixed Planes biome without errors or warnings.