Nuxle

Affects 1.21.8 Release Candidate 1 ( It also works with trident. )

Hi! This website focuses on bugs rather than feature requests. If you want to suggest a new feature, this is the website for you: https://feedback.minecraft.net/

fixed in 1.20.3

However, the issue has already been fixed in version 1.21.8 RC1

Please make a report in English so that we can help you

the first video was not saved correctly, here is the corrected one

okay

Can confirm in 1.21.8 RC1

You may have gamerule doMobSpawning set to false, which prevents mobs from spawning naturally but allows them to spawn using spawners. Try setting the value to true

You are playing on a modified client, try to reproduce it on vanilla

Create a report in English so that we can help you.

This issue is already being tracked here: https://report.bugs.mojang.com/servicedesk/customer/portal/2/MC-296908

This issue is already being tracked here: MC-296908

duplicate: MC-296908
This issue is also tracked in other similar reports.

Can you describe this problem in detail? And how can it be reproduced?

duplicate: MC-296908

This issue is also tracked in other similar reports.

Pls create a report in English

Try using a different server kernel, such as purpur

This is most likely due to the aternos server, as everything works in vanilla Minecraft.