Affects 21w13a
net.minecraft.world.level.levelgen.WorldGenSettings#create does not use the correct DynamicOps when using generator-settings json.
Instead, it should use RegistryReadOps because of the FlatLevelGeneratorSettings codec is of the type RegistryLookupCodec. Currently, it uses JsonOps which is not recognizable by the RegistryLookupCodec.
Still an issue in 1.16.5
Using
{"structures"\:{"structures"\:{}},"layers"\:[{"block"\:"minecraft\:air", "height"\:1}],"biome"\: "minecraft\:plains","flat_world_options"\:{}}
in 1.16 works for generator-settings. In fact, I dont think "flat_world_options" is necessary either. 1.16.2 Pre-release 1 works correctly. 1.16.2 Pre-release 2 results in an IllegalStateException: Unregistered Biome and 1.16.2 Pre-release 3 is when a normal superflat is generated.
Fixed in 1.16
Affects 20w29a
Matt, that video applies to Bedrock Edition. This is a Java Edition bug.
I've noticed the mob cap is being filled by a lot of Drowneds in water pockets, lakes, oceans, and underwater caves where they can't despawn.
I thought that was the case too, but at the time of my testing they were all in the same area in the overworld.
While I don't have video evidence, I have noticed that other players in the overworld intertwine with mechanics that take place in other dimensions.
Playing with 3 others, I was the only one in the end around a platform (yes, it was at least 24 blocks away and yes, I was 128 blocks from any island around me) and saw no enderman spawning. When I asked 2 to leave, enderman started to spawn. I'm not sure if it was at a normal rate, but it was more than the 0 prior. When these two players joined again, spawns returned to none again.
This problem has been affecting our world immensely and now it's a waiting game for some viable spawning mechanics.
Yes.
Villages in default world generation produce paths.
Aw man, sorry. Searched but nothing popped up :/
This is not happening on my client.
EDIT to previous comment: Sorry! I didn't realize what you were saying. I thought you meant mobs "drove" the boats to dangerous places.
It sounds like in the process of updating your server, you managed to corrupt the NBT➕ data. If you have a backup, revert to that and try again. If the problem continues, let me know.
Please don't troll, it only causes trouble for you, and for us trying to help.
Use the A & D keys to use a boat.
This is still an issue in 1.18.2. WorldGenSettings now is instantiating the Dynamic used to parse generator-settings incorrectly. The dynamic needs to be backed by the registry, currently that is not the case.
There is an error message when trying to use generator settings: "Not a registry ops"
The json in server.properties: