backspace256

The bug is probably in net.minecraft.server.network.ServerGamePacketListenerImpl#handleUseItemOn

if (this.server.isUnderSpawnProtection(level, pos, this.player)) {
    this.player.sendSpawnProtectionMessage(pos);
} else if (this.awaitingPositionFromClient == null && level.mayInteract(this.player, pos)) {
...
} else {
    this.player.sendBuildLimitMessage(true, maxY);
}

where if this.awaitingPositionFromClient != null or level.mayInteract(this.player, pos) returns false: it defaults to sending high build limit message.

It happens with items, if you give them an oversized model.

That is cool, it should be a feature

The other spike converted to source.

Can confirm

[19:04:33] [Render thread/INFO]: [System] [CHAT] Local game hosted on port [59078]
[19:04:37] [Render thread/INFO]: [System] [CHAT] Multiplayer game is already hosted on port 59078
[19:05:25] [Render thread/INFO]: Unpublishing integrated server (was on port 59078)
[19:05:25] [Render thread/INFO]: [System] [CHAT] This world is no longer open to multiplayer
[19:05:25] [Render thread/INFO]: Started serving on 59091
[19:05:25] [Render thread/INFO]: Host scope changed to OFF
[19:05:25] [Render thread/INFO]: Host scope changed to LAN
[19:05:25] [Render thread/INFO]: [System] [CHAT] This world is now open to LAN. The port number is [59091]
[19:05:41] [Render thread/INFO]: Unpublishing integrated server (was on port 59091)
[19:05:41] [Render thread/INFO]: Host scope changed to OFF
[19:05:41] [Render thread/INFO]: [System] [CHAT] This world is no longer open to multiplayer

It should be a feature.

It seems more like a tnt entity than a creeper.

{IsChickenJockey: 1b}

Probably Concrete powder

Can confirm in 26.2-snapshot-1

That is a much better title

Still happening in 26.1-rc-2

Log when it happened:

[10:54:49] [Server thread/WARN]: Can't keep up! Is the server overloaded? Running 2592ms or 51 ticks behind
[10:55:02] [Render thread/INFO]: Loaded 135 advancements
[10:55:02] [Render thread/WARN]: Unable to play empty soundEvent: minecraft:entity.cod.ambient
[10:55:03] [Render thread/INFO]: [System] [CHAT] Saved screenshot as 2026-03-24_10.55.01.png
[10:55:07] [Server thread/INFO]: Saving and pausing game...
[10:55:08] [Server thread/INFO]: Saving chunks for level 'ServerLevel[26.1-rc-2]'/minecraft:overworld
[10:55:08] [Server thread/INFO]: Saving chunks for level 'ServerLevel[26.1-rc-2]'/minecraft:the_nether
[10:55:08] [Server thread/INFO]: Saving chunks for level 'ServerLevel[26.1-rc-2]'/minecraft:the_end
[10:55:08] [Server thread/INFO]: Stopping server
[10:55:08] [Server thread/INFO]: Saving players

mainhand is minecraft:ender_pearl[minecraft:max_stack_size=64, !minecraft:use_cooldown]

Hi¡

I can’t record, but here is what is happening:

• During the lag, player places some blocks

• The text Height limit for building is 319 is displayed for the normal amount of time, at the same time as every sound since the last tick is played, and the placed blocks disappear

• It also happens with ender pearls (video from 5Herdortz-256)

No, mods, vanilla; The only 2 resource packs change redstone lamp textures and enchantment text, doesn't affect it.

8GB RAM, Intel i5 CPU, Intel UHD Graphics 620 (128 MB) GPU

The issue has occurred multiple times, in the presence of lag. (Not rendering lag)

@tryashtarWhat JVM args are you using?

Check controls?

Try F3+T?

Why were the pearls of a logged-out player still there?

There are no crash reports, here are some of the logs:

It was on singleplayer not open to LAN.

It seems like a repeating command block is active somewhere.

Yes, I can see that.