@Legendary_Cyrus What have you done to resolve this problem? I have 25H2, and I don't have this issue.

@PandafromUkrain When does this occur? When you start the launcher? When you login? At some other point?

@Giebmasse Oh yeah amazing stuff haha. Well I'm happy it's all sorted out and working now. Would've been nice if it did download the necessary data, to run at all, when using offline mode though.

Thanks a lot! Your time and effort are very much appreciated

@Giebmasse It must have been the trigger, because login is not enough, I did that many times. You need to start an actual FAF game to get the updates that resolve this "bin" folder problem, to get the gamedata.

@Giebmasse Remove C:\ProgramData\FAForever, let it get created again > Did that, "bin" folder wasn't there.
Create FAForever\bin yourself > Did that, "bin" folder stayed empty
Run client as administrator (normally one shouldn't, but eh) > Did that, same result as unelevated
Try the py client: https://github.com/FAForever/client > This got interesting.

So I did a default py client install.
I noticed the py client doesn't have an offline mode.
So I started a cutom private game with just AI to test things out.
When I did that, it downloaded data, first time that happened.

That got me thinking, what if I replicate that with the regular client?
I did a default install of the regular client, didn't uninstall the py client.
I start the regular client, click offline and it gives me a lua error.
So I logged in, started a private custom game with just AI, just like I did with the py client.
Everything worked. I log out of the regular client, click the offline button... no error, it all worked.

@magge I did, both. I tried the craziest things. Not gonna lie, I was working on this issue for hours before coming here. I'm a system engineer, so I'm used to weird solutions to make things work, but this one's got me stumped.

@magge Thats the weird thing, I did a clean install of both the game and the FAF client, and it tries to find a file that simply doesn't exist. The whole "bin" folder doesn't exist, no matter how many times I reïnstall the FAF client. I did disable all anti-virus during installation and even after when I ran the FAF client.

I have the same issue with v2026.1.0. Tried everything, clean install, different install paths, symlinks, edited the client config file with different paths, granted permissions to "C:\ProgramData\FAForever" for all users, installed .net and vcredist again. Nothing worked.
For some reason the "bin" folder just doesn't get created. "C:\ProgramData\FAForever" just has cache and themes.
Tried an older version from Git v2025.9.2, but the server rejected that and demanded 2026.1.0.
SC:FA paths in the settings of the client are correct, always have been.

Here's what the client log tells me.

2026-02-05T19:26:09.694+01:00 INFO 13488 --- [FAF Client] [ForkJoinPool.commonPool-worker-5] com.faforever.client.update.Version : fromVersion '2026.1' is not newer than toVersion '2026.1'. No update is required.
2026-02-05T19:26:09.694+01:00 ERROR 13488 --- [FAF Client] [reactor-http-nio-2] reactor.core.publisher.Operators : Operator called default onErrorDropped

reactor.core.Exceptions$ErrorCallbackNotImplemented: io.netty.handler.ssl.SslClosedEngineException: SSLEngine closed already
Caused by: io.netty.handler.ssl.SslClosedEngineException: SSLEngine closed already
at io.netty.handler.ssl.SslHandler.wrap(SslHandler.java:940)
at io.netty.handler.ssl.SslHandler.wrapAndFlush(SslHandler.java:844)
at io.netty.handler.ssl.SslHandler.flush(SslHandler.java:825)
at io.netty.handler.ssl.SslHandler.flush(SslHandler.java:2154)
at io.netty.handler.ssl.SslHandler.closeOutboundAndChannel(SslHandler.java:2123)
at io.netty.handler.ssl.SslHandler.close(SslHandler.java:776)
at io.netty.channel.AbstractChannelHandlerContext.invokeClose(AbstractChannelHandlerContext.java:653)
at io.netty.channel.AbstractChannelHandlerContext.close(AbstractChannelHandlerContext.java:625)
at io.netty.channel.AbstractChannelHandlerContext.close(AbstractChannelHandlerContext.java:452)
at io.netty.channel.DefaultChannelPipeline.close(DefaultChannelPipeline.java:978)
at io.netty.channel.Channel.close(Channel.java:312)
at reactor.netty.http.client.HttpClientOperations.onInboundCancel(HttpClientOperations.java:383)
at reactor.netty.channel.FluxReceive.disposeAndUnsubscribeReceiver(FluxReceive.java:496)
at io.netty.util.concurrent.AbstractEventExecutor.runTask(AbstractEventExecutor.java:148)
at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:141)
at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:535)
at io.netty.channel.SingleThreadIoEventLoop.run(SingleThreadIoEventLoop.java:201)
at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:1195)
at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
at java.base/java.lang.Thread.run(Thread.java:1474)

2026-02-05T19:26:09.701+01:00 DEBUG 13488 --- [FAF Client] [reactor-http-nio-2] c.f.client.chat.KittehChatService : Connection state changed from CONNECTED to DISCONNECTED
2026-02-05T19:26:11.800+01:00 INFO 13488 --- [FAF Client] [JavaFX Application Thread] c.f.c.preferences.PreferencesService : Hash of Supreme Commander.exe in selected User directory: C6783580C0B7A408EC2AD3BFE5EB1FDBEF31A60D92C1007FF9B90C33BB960AA0
2026-02-05T19:26:11.802+01:00 INFO 13488 --- [FAF Client] [ForkJoinPool.commonPool-worker-5] c.f.c.fa.ForgedAllianceLaunchService : Starting Forged Alliance with command: [C:\ProgramData\FAForever\bin\ForgedAlliance.exe, /init, init.lua, /nobugreport, /log, %USER_PROFILE%\AppData\Roaming\Forged Alliance Forever\logs\game_0.log] in directory: C:\ProgramData\FAForever\bin
2026-02-05T19:26:11.804+01:00 ERROR 13488 --- [FAF Client] [JavaFX Application Thread] com.faforever.client.game.GameRunner : Launching offline game failed

NotifiableException(i18nKey=game.start.couldNotStart, i18nArgs=[])
at com.faforever.client.fa.ForgedAllianceLaunchService.launch(ForgedAllianceLaunchService.java:163)
at com.faforever.client.fa.ForgedAllianceLaunchService.launchOfflineGame(ForgedAllianceLaunchService.java:49)
at com.faforever.client.game.GameRunner.lambda$startOffline$1(GameRunner.java:556)
at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1789)
at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.exec(CompletableFuture.java:1781)
at java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:511)
at java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1450)
at java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:2019)
at java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:187)
Caused by: java.io.IOException: Cannot run program "C:\ProgramData\FAForever\bin\ForgedAlliance.exe" (in directory "C:\ProgramData\FAForever\bin"): CreateProcess error=2, Het systeem kan het opgegeven bestand niet vinden
at java.base/java.lang.ProcessBuilder.start(ProcessBuilder.java:1112)
at java.base/java.lang.ProcessBuilder.start(ProcessBuilder.java:1046)
at com.faforever.client.fa.ForgedAllianceLaunchService.launch(ForgedAllianceLaunchService.java:161)
... 8 common frames omitted
Caused by: java.io.IOException: CreateProcess error=2, Het systeem kan het opgegeven bestand niet vinden
at java.base/java.lang.ProcessImpl.create(Native Method)
at java.base/java.lang.ProcessImpl.<init>(ProcessImpl.java:485)
at java.base/java.lang.ProcessImpl.start(ProcessImpl.java:146)
at java.base/java.lang.ProcessBuilder.start(ProcessBuilder.java:1078)
... 10 common frames omitted