[MC-302166] Mobs not spawning in nether or the end

No mobs are spawning in the nether or the end.

Environment

Verified on MacOS 26.0 using Minecraft Launcher and Ubuntu 24.04.3 LTS using Prim Launcher 9.4 running in a parallels 26.0.1 virtual machine.

having the same issue.
Enviroment
windows 11 1.21.9 pre-release 1

同じく、エンド・ネザーにてモブスポーンしません

Windows１１　１，２１，９　PRE１

This seems to affect all dimensions, even custom ones via data packs.

It worked in previous snapshot 25w37a. As of the prerelease, mobs do not spawn in any dimension but the overworld.

they are trolling. mobs are spawning normally.

actually only certain mobs spawn. the ghasts dont spawn at all. so please fix it

please fix the mob not spawning issue please soon