[MC-155544] Zombie siege spawns on illuminated terrain

The bug

In my village a zombie siege happened a few seconds of loading the terrain despite the fact that this terrain where they spawned is illuminated with torches.

Linked issues

is duplicated by 1

MC-155921 A horde of zombies spawn in a village that is lit. Resolved

relates to 1

MC-59440 Siege zombies spawn inside some blocks Resolved

Attachments

Comments 7

violine1101 2019-06-28T18:27:07Z

I'm pretty sure that that's the entire point of zombie sieges: They appear even when the area is lit.

marcono1234 2019-06-30T22:39:09Z

The code analysis of MC-59440 describes this difference and a few other ones, however it is not directly about this issue, so I only linked it as related.

Hugo Bonelli 2019-11-03T23:36:48Z

According to the wiki, "Zombies spawned within a siege ignore player proximity, light levels, and the presence of other mobs."

violine1101 2019-11-04T23:10:41Z

The wiki is not a valid source as it is edited by the community.

Avoma 2021-02-17T15:11:50Z

I am unable to reproduce this issue in 21w06a.

Chandler 2021-02-24T22:50:21Z

Can you still reproduce this in the latest version of Minecraft?

marcono1234 2021-03-01T17:07:42Z

It appears in 21w06a (and probably earlier) the class VillageSiege.findRandomSpawnPos(ServerLevel, BlockPos) calls Monster.checkMonsterSpawnRules which performs a light level check, so this should be fixed.

I am therefore resolving this as Cannot Reproduce (since the exact fix version is unknown).
Please let us know if you are still experiencing this bug in the latest versions.