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Reproduced: Source Control causes crash in 4.10 Preview 2.

To reproduce in 4.10 preview 2: Click the source control button > Click Perforce > Experience crash.

Product Version: UE 4.10 Preview
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asked Oct 20 '15 at 04:55 PM in Bug Reports

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avatar image Nextwave Nov 08 '15 at 08:02 PM

My error output:

MachineId:C24F2D9E4BAAC6956DFCB3B8784B44A5 EpicAccountId:e470b6efe5894cc6834c1933acc4c635

Stack overflow - code c00000fd (first/second chance not available)


LavasoftTcpService64 LavasoftTcpService64 ws2_32 ws2_32 UE4Editor_PerforceSourceControl!NetTcpSelector::Select() UE4Editor_PerforceSourceControl!NetTcpTransport::SendOrReceive() UE4Editor_PerforceSourceControl!NetBuffer::Receive() UE4Editor_PerforceSourceControl!RpcTransport::Receive() UE4Editor_PerforceSourceControl!Rpc::DispatchOne() UE4Editor_PerforceSourceControl!Rpc::Dispatch() UE4Editor_PerforceSourceControl!Client::WaitTag() UE4Editor_PerforceSourceControl!Client::RunTag() UE4Editor_PerforceSourceControl!Client::Run() UE4Editor_PerforceSourceControl!FPerforceConnection::RunCommand() UE4Editor_PerforceSourceControl!FPerforceConnection::EstablishConnection() UE4Editor_PerforceSourceControl!FPerforceConnection::FPerforceConnection() UE4Editor_PerforceSourceControl!FScopedPerforceConnection::Initialize() UE4Editor_PerforceSourceControl!FPerforceGetWorkspacesWorker::Execute() UE4Editor_PerforceSourceControl!FPerforceSourceControlCommand::DoThreadedWork() UE4Editor_Core!FQueuedThread::Run() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\core\private\hal\threadingbase.cpp:400] UE4Editor_Core!FRunnableThreadWin::Run() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\core\private\windows\windowsrunnablethread.cpp:74]

avatar image Nextwave Nov 09 '15 at 02:02 PM

Having this exact same issue with 4.9.2 right now.. :/

avatar image Doug E ♦♦ STAFF Nov 09 '15 at 03:54 PM

Hey Nextwave-

You are getting a crash when you click on Perforce in the Source Control window, is that correct? Is this occurring in a fresh 4.9.2 project? Are you using the launcher or a source built version of the engine.

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Hey Kitatus-

This was reported for Preview 1 as well (UE-22260) and is under investigation.


Doug Wilson

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answered Oct 20 '15 at 05:54 PM

avatar image Vergbergler Jan 21 '16 at 05:17 PM

Any resolution to this issue?

avatar image Doug E ♦♦ STAFF Jan 21 '16 at 05:52 PM

Hey OmicronVega-

This crash was reported as part of the 4.10 preview process and was fixed for the final 4.10 release. Are you still seeing this crash in 4.10.2?

avatar image Vergbergler Jan 21 '16 at 06:40 PM

Hey Doug,

I sure do. As soon as the Source Control button is pressed all of Unreal's UI freezes indefinitely without a crash report or breaking if Visual Studio 2015 is attached. I've left it running for about 30 minutes this way, but it remains frozen.

What I've tried thus far: 1) Uninstalled UE4 (all versions) from my machine including the launcher. 2) Uninstalled Visual Studio 2015. 3) Starting a new project that isn't connected to our repository.

I'm currently running Windows 7 x64.

Would you like to know more information?

avatar image Vergbergler Jan 21 '16 at 11:18 PM

Hey again Doug,

Is there anything I can do to help resolve this issue? Video recording of the bug, pictures, settings file configurations?

Thank you.

avatar image Doug E ♦♦ STAFF Jan 22 '16 at 03:37 PM

Are you using 4.10.2 build from source or are you using a launcher build? And to confirm, you tried creating a new project and attempted to connect to source control? Also, can you post the log files and callstack from the crash for additional information?


avatar image Vergbergler Jan 23 '16 at 09:08 PM

Hey Doug,

To answer your questions: I can do both. Yes. No there isn't debug output of any kind. Unreal just locks up and remains that way. I have waited up to 30 minutes for something to happen on both a VS startup and a Launcher startup.

Solution: I did some digging while I was waiting for you to respond. I'm using a MSI laptop and it comes with preinstalled software called "Nahimic". Nahimic is apparently known to cause certain behavioral problems with Unreal Engine dialogs, to fix simply close all running Nahimic processes.

Thank you for your help!

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