Chunk regeneration bug and SleepWarp consecutive errors

[Ryflick]

Heya just wanna ask C2ME causing chunk glitch and incompatibility when using sleepwarp, do you guys have any fix for this ?

java.util.ConcurrentModificationException: ThreadLocalRandom accessed from a different thread (owner: Server thread, current: pool-24-thread-1)
at com.ishland.c2me.fixes.worldgen.threading_issues.common.CheckedThreadLocalRandom.handleNotOwner(CheckedThreadLocalRandom.java:55) ~[c2me-fixes-worldgen-threading-isalpha.10.91-8b9fa11884cf15d1.jar:?]
at com.ishland.c2me.fixes.worldgen.threading_issues.common.CheckedThreadLocalRandom.isSafe(CheckedThreadLocalRandom.java:38) ~[c2me-fixes-worldgen-threading-isalpha.10.91-8b9fa11884cf15d1.jar:?]
at com.ishland.c2me.fixes.worldgen.threading_issues.common.CheckedThreadLocalRandom.method_43156(CheckedThreadLocalRandom.java:86) ~[c2me-fixes-worldgen-threading-isalpha.10.91-8b9fa11884cf15d1.jar:?]
at net.minecraft.class_6566.method_43058(class_6566.java:61) ~[server-intermediary.jar:?]
at net.minecraft.class_4482.method_31656(net/minecraft/class_4482.java:313) ~[server-intermediary.jar:?]
at net.minecraft.class_2818$class_5563.redirect$zih000$carpet$checkProcessBEs(carpet/mixins/BoundTickingBlockEntity_tickMixin.java [carpet.mixins.json]:41) ~[server-intermediary.jar:?]
at net.minecraft.class_2818$class_5563.method_31703(net/minecraft/class_2818$class_5563.java:662) ~[server-intermediary.jar:?]
at net.minecraft.class_2818$class_5564.method_31703(net/minecraft/class_2818$class_5564.java:716) ~[server-intermediary.jar:?]
at me.thegiggitybyte.sleepwarp.WarpDrive.tickBlockEntities(WarpDrive.java:269) ~[SleepWarp-2.1.0+1.20_S.jar:?]
at me.thegiggitybyte.sleepwarp.WarpDrive.lambda$tickWorld$5(WarpDrive.java:177) ~[SleepWarp-2.1.0+1.20_S.jar:?]
at java.util.concurrent.CompletableFuture$AsyncRun.run(Unknown Source) ~[?:?]
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) ~[?:?]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) ~[?:?]
at java.lang.Thread.run(Unknown Source) ~[?:?]
[00:51:43] [pool-24-thread-1/INFO]: [STDOUT]: Negative index in crash report handler (0/8)
[00:51:43] [pool-24-thread-1/ERROR]: ThreadLocalRandom accessed from a different thread (owner: Server thread, current: pool-24-thread-1)
This is usually NOT a bug in C2ME, but a bug in another mod or in vanilla code.
Possible solutions:

• Find possible causes in the stack trace below and
  • if caused by another mod, report this to the corresponding mod authors
  • if no other mods are involved, report this to C2ME

[ishland]

It is SleepWarp trying to tick world on another thread rather than server thread. This behavior is NOT SUPPORTED and is likely to break a lot of other mods.

[Ryflick]

I see, any solution other than move SleepWarp to fix it? Or is removing SleepWarp only solution to solve the issue?

[ishland]

You should report this issue to SleepWarp. At the moment, finding an alternative or removing it are the only option.

[Ryflick]

You should report this issue to SleepWarp. At the moment, finding an alternative or removing it are the only option.

Thank you for the quick response! I'll report to SleepWarp and in the mean time removing it until find another compatible mod.