Steps to reproduce
Replace the floor of a nether fortress with nether wart blocks.
Observe the spawns. (Kill or despawn monsters frequently to speed this up.)
Expected result
Magma cubes and skeletons do not spawn (see explanation in original description below).
Observed result
All nether fortress mobs spawn.
In the spawn rules for Magma Cubes and Skeletons there is a spawn on block filter. This would help make Wither Skeleton farms function well (currently Magma Cubes cause issues).
"conditions": [
{
"minecraft:spawns_underground": {
}, "minecraft:spawns_on_block_prevented_filter": [
"minecraft:nether_wart_block",
"minecraft:shroomlight"
],However, Magma Cubes and Skeletons are still spawing on these blocks. Image attached.
Attachments
Comments 6
Thank you for your report!
However, this issue has been temporarily closed as Awaiting Response.
Is this still an issue in the latest version? If yes, can you please add it to the affected versions (or mention it if you are not the reporter)?
This ticket will automatically reopen when you reply.
Quick Links:
📓 Issue Guidelines – 💬 Mojang Support – 📧 Suggestions – 📖 Minecraft Wiki
I think I may have found what was happening to this user.
As of 1.17.11, Magma Cubes and Skeletons spawn on nether wart when spawned as part of a structure (on hard-coded spawning spots).
Here is a short clip showcasing this on a stripped-down fortress.
I suggest this report be reopen.
Zombie pigmen share the same spawns_on_block_prevented_filter and also will spawn on the nether wart blocks within the fortress.
wai