Couldn't find template pool reference: minecraft:south

[maathouu]

Hello,
I've just finished to do my modpack, and when i try to generate chunks, sometimes i got this in my log :
[11:22:43] [Worker-Main-2/WARN] [lithostitched/]: Couldn't find template pool reference: minecraft:south
[11:22:43] [Worker-Main-2/WARN] [lithostitched/]: Couldn't find template pool reference: minecraft:south
[11:22:43] [Worker-Main-2/WARN] [lithostitched/]: Couldn't find template pool reference: minecraft:south
[11:22:43] [Worker-Main-2/WARN] [lithostitched/]: Couldn't find template pool reference: minecraft:south
[11:22:43] [Worker-Main-2/WARN] [lithostitched/]: Couldn't find template pool reference: crazy_chambers:melee_spawner
[11:22:43] [Worker-Main-2/WARN] [lithostitched/]: Couldn't find template pool reference: minecraft:south
[11:22:43] [Worker-Main-2/WARN] [lithostitched/]: Couldn't find template pool reference: minecraft:south
[11:22:43] [Worker-Main-2/WARN] [lithostitched/]: Couldn't find template pool reference: minecraft:south
[11:22:43] [Worker-Main-2/WARN] [lithostitched/]: Couldn't find template pool reference: minecraft:south
[11:22:43] [Worker-Main-2/WARN] [lithostitched/]: Couldn't find template pool reference: minecraft:south
[11:22:43] [Worker-Main-2/WARN] [lithostitched/]: Couldn't find template pool reference: minecraft:south
[11:22:43] [Worker-Main-2/WARN] [lithostitched/]: Couldn't find template pool reference: minecraft:south
[11:22:43] [Worker-Main-2/WARN] [lithostitched/]: Couldn't find template pool reference: minecraft:south
[11:22:43] [Worker-Main-2/WARN] [lithostitched/]: Couldn't find template pool reference: minecraft:south
[11:22:43] [Worker-Main-2/WARN] [lithostitched/]: Couldn't find template pool reference: minecraft:south
[11:22:43] [Worker-Main-2/WARN] [lithostitched/]: Couldn't find template pool reference: minecraft:south
[11:22:43] [Worker-Main-2/WARN] [lithostitched/]: Couldn't find template pool reference: minecraft:south
[11:22:43] [Worker-Main-2/WARN] [lithostitched/]: Couldn't find template pool reference: minecraft:south
[11:22:43] [Worker-Main-2/WARN] [lithostitched/]: Couldn't find template pool reference: minecraft:south
[11:22:43] [Worker-Main-2/WARN] [lithostitched/]: Couldn't find template pool reference: minecraft:south
[11:22:43] [Worker-Main-2/WARN] [lithostitched/]: Couldn't find template pool reference: minecraft:south
[11:22:43] [Worker-Main-2/WARN] [lithostitched/]: Couldn't find template pool reference: minecraft:south
[11:22:43] [Worker-Main-2/WARN] [lithostitched/]: Couldn't find template pool reference: minecraft:south
[11:22:43] [Worker-Main-2/WARN] [lithostitched/]: Couldn't find template pool reference: minecraft:south
[11:22:43] [Worker-Main-2/WARN] [lithostitched/]: Couldn't find template pool reference: minecraft:south
[11:22:43] [Worker-Main-2/WARN] [lithostitched/]: Couldn't find template pool reference: minecraft:south
[11:22:43] [Worker-Main-2/WARN] [lithostitched/]: Couldn't find template pool reference: minecraft:south
[11:22:43] [Worker-Main-2/WARN] [lithostitched/]: Couldn't find template pool reference: minecraft:south
[11:22:43] [Worker-Main-2/WARN] [lithostitched/]: Couldn't find template pool reference: minecraft:south
[11:22:43] [Worker-Main-2/WARN] [lithostitched/]: Couldn't find template pool reference: minecraft:south
[11:22:43] [Worker-Main-2/WARN] [lithostitched/]: Couldn't find template pool reference: minecraft:south
[11:22:43] [Worker-Main-2/WARN] [lithostitched/]: Couldn't find template pool reference: minecraft:south
[11:22:43] [Worker-Main-2/WARN] [lithostitched/]: Couldn't find template pool reference: minecraft:south
[11:22:43] [Worker-Main-2/WARN] [lithostitched/]: Couldn't find template pool reference: minecraft:south
[11:22:43] [Worker-Main-2/WARN] [lithostitched/]: Couldn't find template pool reference: minecraft:south
[11:22:43] [Worker-Main-2/WARN] [lithostitched/]: Couldn't find template pool reference: minecraft:south
[11:22:43] [Worker-Main-2/WARN] [lithostitched/]: Couldn't find template pool reference: minecraft:south
[11:22:43] [Worker-Main-2/WARN] [lithostitched/]: Couldn't find template pool reference: minecraft:south
[11:22:43] [Worker-Main-2/WARN] [lithostitched/]: Couldn't find template pool reference: minecraft:south
[11:22:43] [Worker-Main-2/WARN] [lithostitched/]: Couldn't find template pool reference: minecraft:south
[11:22:43] [Worker-Main-2/WARN] [lithostitched/]: Couldn't find template pool reference: minecraft:south
[11:22:43] [Worker-Main-2/WARN] [lithostitched/]: Couldn't find template pool reference: minecraft:south
[11:22:43] [Worker-Main-2/WARN] [lithostitched/]: Couldn't find template pool reference: minecraft:south
[11:22:43] [Worker-Main-2/WARN] [lithostitched/]: Couldn't find template pool reference: minecraft:south
[11:22:43] [Worker-Main-2/WARN] [lithostitched/]: Couldn't find template pool reference: minecraft:south
[11:22:43] [Worker-Main-2/WARN] [lithostitched/]: Couldn't find template pool reference: minecraft:south
[11:22:43] [Worker-Main-2/WARN] [lithostitched/]: Couldn't find template pool reference: minecraft:south
[11:22:43] [Worker-Main-2/WARN] [lithostitched/]: Couldn't find template pool reference: minecraft:south
[11:22:43] [Worker-Main-2/WARN] [lithostitched/]: Couldn't find template pool reference: minecraft:south
[11:22:43] [Worker-Main-2/WARN] [lithostitched/]: Couldn't find template pool reference: minecraft:south
[11:22:43] [Worker-Main-2/WARN] [lithostitched/]: Couldn't find template pool reference: minecraft:south
[11:22:43] [Worker-Main-2/WARN] [lithostitched/]: Couldn't find template pool reference: minecraft:south
[11:22:43] [Worker-Main-2/WARN] [lithostitched/]: Couldn't find template pool reference: minecraft:south

And at the same moment my game freeze a little bit, idk why i got this message and if i can disable this template pool.

[davioliva16]

I have the exact same issue

[abbybell67]

same!

[bassistracer]

Getting a similar issue in 1.21.1 Fabric, if there's any protips on how this can be avoided it'd be welcome.