How old is your computer? I recently got a Legion Pro running Windows 11, but before that I tested three other laptops. All had Windows 11 and either an 11th gen or 12th gen Intel CPU. All 4 laptops had no problems hosting games with mods. My older laptop that had issues is Windows 10 with an i7-5500u. Don't know if the bug is related to Windows version or older hardware?

I did just run into another player on FAF asking for help with the same problem, but I didn't ask him his specs.

@magge

Updated the OP with the current error details.

Bitte erstelle einen eigenen Thread und poste dort welchen Fehler du genau hast und füge die letzten logs hinzu.

C:\Users\%username%\AppData\Roaming\Forged Alliance Forever\logs

Please create a separate thread and post there which error you have exactly and add the last logs.

@broodlow @eb_ Вы гении!!! Спасибо! Я неделю мучаюсь. Откладывал любимую игру. Надеялся, что разработчики устранят этот баг! Но видимо не у всех эта проблема, поэтому они не торопятся.
Ещё раз спасибо.

Fix: https://forum.faforever.com/post/41558

fix here: https://forum.faforever.com/topic/5589/client-java-lang-error-fix/6

The path to the new map directory is not created. And the old path of the new version was not visible.

FAF is broken, what should I do? Before this update 2023_1_1 everything worked fine, after this update 2023_1_1 it doesn't work!

@Custos_StSp создал с английским языком 4 игры с ботами и опять ошибка.

Which issue appears next time very quick?

Рили как решить такую проблему?
Client Version: 2023.1.1
java.lang.Error: java.nio.charset.UnmappableCharacterException: Input length = 2
at java.base/java.lang.String.decodeWithDecoder(String.java:1212)
at java.base/java.lang.String.newStringNoRepl1(String.java:786)
at java.base/java.lang.String.newStringNoRepl(String.java:738)
at java.base/java.lang.System$2.newStringNoRepl(System.java:2390)
at java.base/java.nio.file.Files.readString(Files.java:3369)
at com.faforever.client.mod.ModService.readPreferencesFile(ModService.java:314)
at com.faforever.client.mod.ModService.readActiveMods(ModService.java:330)
at com.faforever.client.mod.ModService.enableSimMods(ModService.java:232)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:568)
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:343)
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:699)
at com.faforever.client.mod.ModService$$SpringCGLIB$$0.enableSimMods(<generated>)
at com.faforever.client.game.GameService.lambda$joinGame$10(GameService.java:332)
at java.base/java.util.concurrent.CompletableFuture$UniRun.tryFire(CompletableFuture.java:787)
at java.base/java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:510)
at java.base/java.util.concurrent.CompletableFuture.complete(CompletableFuture.java:2147)
at com.faforever.client.task.CompletableTask.lambda$new$2(CompletableTask.java:19)
at com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:86)
at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:234)
at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:191)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74)
at com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:54)
at javafx.event.Event.fireEvent(Event.java:198)
at javafx.concurrent.EventHelper.fireEvent(EventHelper.java:219)
at javafx.concurrent.Task.fireEvent(Task.java:1359)
at javafx.concurrent.Task.setState(Task.java:725)
at javafx.concurrent.Task$TaskCallable.lambda$call$1(Task.java:1437)
at com.sun.javafx.application.PlatformImpl.lambda$runLater$10(PlatformImpl.java:457)
at java.base/java.security.AccessController.doPrivileged(AccessController.java:399)
at com.sun.javafx.application.PlatformImpl.lambda$runLater$11(PlatformImpl.java:456)
at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:96)
at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at com.sun.glass.ui.win.WinApplication.lambda$runLoop$3(WinApplication.java:184)
at java.base/java.lang.Thread.run(Thread.java:833)
Caused by: java.nio.charset.UnmappableCharacterException: Input length = 2
at java.base/java.nio.charset.CoderResult.throwException(CoderResult.java:275)
at java.base/java.lang.String.decodeWithDecoder(String.java:1205)
... 38 more

Test?

I assume there was a temporary error on steam side. We didn't touch anything.

Works now. Not sure what happened.

@versailin maybe it’s something to do with your own PC?

BTW, I run the Aussie TURN server, and it's up.

@frio Have the same problem. Did you get it fixed?