My server delineates and names regions, but when there are no players, or when the server restarts, the region names are reset to the default
Java11
Server:Catserver-1.16.5
Modpack:LCW4.0
https://www.curseforge.com/minecraft/modpacks/lcw/files

Before I do anything, can you pass me the latest minecraft log? Client and server.

That's great, waiting for the next update!

Good news! I found the bug, it will be fixed in the next release, probably tomorrow.

Fixed in 2.1.3

I am not able to replicate the problem. I don't know much about servers, but if it works like the Minecraft client, version 1.16.5 uses Java 8, not 11.

Some questions:

1. Do you have OP permissions?
2. When you change the shape of a frontier do other players see those changes?
3. When you change the name of a frontier do other players see that change?
4. Frontiers names have non-ascii characters (letters from languages other than English)?

I have the OP, Frontiers uses the English name
But because ModernUI can only use Java11, I can't test if it's a Java problem for now.

Can you please pass me the frontiers.dat file as soon as you change the two lines of the name and again after closing the server.

I am not able to replicate the problem. I don't know much about servers, but if it works like the Minecraft client, version 1.16.5 uses Java 8, not 11.

Some questions:

1. Do you have OP permissions?
2. When you change the shape of a frontier do other players see those changes?
3. When you change the name of a frontier do other players see that change?
4. Frontiers names have non-ascii characters (letters from languages other than English)?

frontiers.dat.txt

Can you please pass me the frontiers.dat file as soon as you change the two lines of the name and again after closing the server.

Can you send me the file creating a new frontier, after renaming it and closing the Info window, but before disconnecting from the server?

Sorry for the delay, Github never notified me of your message. I just saw it because I manually entered this issue.

Can you send me the file creating a new frontier, after renaming it and closing the Info window, but before disconnecting from the server?

Sorry for the delay, Github never notified me of your message. I just saw it because I manually entered this issue.

frontiers.dat.zip
I have put together a file of all the step periods

I have put together a file of all the step periods

That's great, I'll take a look at it.

Neither the name nor the modification date reaches the server. Are you sure it's just the name that's not working and not the color or vertices as well?

But in EditName2 the name of a frontier was modified, not the new one but the one with 6 vertices. Hmmm I don't understand what is going on.

But in EditName2 the name of a frontier was modified, not the new one but the one with 6 vertices. Hmmm I don't understand what is going on.

Maybe We can go to platforms like discord to exchange ideas, which will be easier.

That "What" did make it to the file, but the rest didn't. I don't understand how that can happen.

但是在 EditName2 中，边界的名称被修改了，不是新的边界，而是具有 6 个顶点的边界。嗯，我不明白发生了什么。

In editname1, I changed the first line of the name to "Test"
The second line is "Test2"

In editname2, the boundary name has been reset to the default, at which point I change the first line to "What"

I'll try to send you a server that has this problem later, maybe that will make it easier for you to find the problem

If I prepare a version of the mod with some debug logging, could you test it and then send me the log file?

yes,,i can

Ok, I don't have time right now, but I'll do it tomorrow. Thank you!