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Thanks.

Thanks, i avoid large title mostly because when create the report and try to put large things show a warning for “Must be less than 101 characters” so a try to avoid that.

Its still valid if consider this can be replicated with custom items using that component and damage? Or that can be added in the original issue? @clamlol

Present in 26.3, also based in activity of current reported i wanna request ownership of this report.

Hi, i get a world with that issue but cannot find a way in recent versions to get that file with that things then not sure if maybe the issue come from a old version migration…

Confirmed when try to run the server just fails with.

[10:35:43] [ServerMain/INFO]: Json-RPC Management connection listening on localhost:25585
[10:35:43] [ServerMain/ERROR]: Failed to start the minecraft server
java.lang.IllegalArgumentException: period: 0 (expected: > 0)
        at io.netty.util.concurrent.AbstractScheduledEventExecutor.scheduleAtFixedRate(AbstractScheduledEventExecutor.java:291)
        at io.netty.util.concurrent.AbstractEventExecutorGroup.scheduleAtFixedRate(AbstractEventExecutorGroup.java:60)
        at net.minecraft.server.jsonrpc.ManagementServer.scheduleHeartbeat(ManagementServer.java:71)
        at net.minecraft.server.jsonrpc.JsonRpc.create(JsonRpc.java:44)
        at net.minecraft.server.Main.main(Main.java:138)
        at net.minecraft.bundler.Main.lambda$run$0(Main.java:54)
        at java.base/java.lang.Thread.run(Thread.java:1474)

Confirmed in 26.2-snapshot-3

Confirmed in 26.1.2

Confirmed in 26.1.2

In the game this not happen because the server was already started.
I include server logs with the last snapshot (for the unobfuscated stacktrace) where show the issue.

Hi, the reproductions steps only works for custom enviroment (mods,plugins) where use the WorldBorder and not use the applyInitialSettings, this was talked before in discord about how can report this because the issue is the field still using a default value where in vanilla is overriden later then the method is called and set all based in Settings but the first creation has the old values.

Jira not show how to respond to a past message.. but.. i add the details (added in the original report)

Steps to Reproduce:

1. Create a new world

2. Save and close

Observed Results:
In the data folder of world in the world_border.dat the warning time is 15 ticks then the warning screen show in less than 1 second when run the worldborder and the player is close to them

Expected Results:
The warning time is 300 ticks (like 15 seconds in past versions) and players get the screen warning in 15 seconds

See the deofuscated version of 25w45a the issue is the WorldBorder class where the field for warningTime in the class and the Settings record was not update to the new default in ticks

Confirmed if die in survival like lava lake in y<18 you respawn inside blocks.

Record with the flags and how lost when use a portal.

I have the same issue in a server when players try to join a few of them get disconnected by this

but comparing the code looks like before 1.20 (decompiled) the DragonBattle is assign by default to any dragon summoned.

oh then still being a issue because i can edit the sign, when reload the world i cannot edit like say the technical changes.

This also apply to allay generated by summon command (the tag missing or default to 0).