Reproduced: Source Control causes crash in 4.10 Preview 2

Development Pipeline & Plugins
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1

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

2

Hey Kitatus-

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

Cheers

3

Having this exact same issue with 4.9.2 right now… :confused:

4

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]

5

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.

6

Any resolution to this issue?

7

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?

8

Hey ,

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?

9

Hey again ,

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

Thank you.

10

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?

Thanks

11

Hey ,

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!