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Crash: Unreal Engine has Stopped Working

I've recently migrated from 4.16.3 to 4.17 and on first launch after a successful compile I get "Unreal Engine has stopped working".

There is no crash reporter and nothing from the logs indicate any problems. It simply loads to 100% and I get this error message.

alt text

Rolling back to 4.16.3 and I get no problems. Creating a new 4.17.2 project works ok.

Since there is no crash report and no other error than this. What steps should I be following to locate the problem?

Clicking the Debug Option above gives me:

 Unhandled exception at 0x00007FFB42115BF8 (KernelBase.dll) in UE4Editor.exe: 0xC000041D: An unhandled exception was encountered during a user callback.

When I attempt to debug the editor (F5 in the .sln) this comes up:

 Exception thrown at 0x00007FFB0FB6A248 (UE4Editor-CoreUObject-Win64-Debug.dll) in UE4Editor-Win64-Debug.exe: 0xC00000FD: Stack overflow (parameters: 0x0000000000000001, 0x0000008A857C3000).
 Unhandled exception at 0x00007FFB0FB6A248 (UE4Editor-CoreUObject-Win64-Debug.dll) in UE4Editor-Win64-Debug.exe: 0xC00000FD: Stack overflow (parameters: 0x0000000000000001, 0x0000008A857C3000).

Windows Event Viewer Says:

 Faulting application name: UE4Editor.exe, version:, time stamp: 0x59e1acbe
 Faulting module name: KERNELBASE.dll, version: 6.3.9600.17055, time stamp: 0x532954fb
 Exception code: 0x00000001
 Fault offset: 0x0000000000005bf8
 Faulting process id: 0x2ee0
 Faulting application start time: 0x01d345529c3050e3
 Faulting application path: E:\417_2\Engine\Binaries\Win64\UE4Editor.exe
 Faulting module path: C:\Windows\system32\KERNELBASE.dll
 Report Id: 08a7554a-b146-11e7-83bf-bc5ff4fd1df8
 Faulting package full name: 
 Faulting package-relative application ID: 

Download the Full Engine Log

Product Version: UE 4.17
stoppedworking.png (14.4 kB)
enginelog.log (216.0 kB)
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asked Oct 15 '17 at 05:04 AM in Bug Reports

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1 answer: sort voted first

I've heard from someone else that this was due to a stack overflow during Blueprint compiling. Try changing the stack sizes and see if that fixes it for you

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answered Oct 17 '17 at 08:20 PM

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joeGraf STAFF
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avatar image Taurian Oct 18 '17 at 04:13 AM

This sounds like an engine modification. Where do I go to do this?

avatar image joeGraf STAFF Oct 23 '17 at 07:03 PM

Looks like you can use editbin to try this out without having to build. Stack size instructions

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