4.6 Crashes on startup

Development Platform & Builds
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1

I have just installed 4.6 and the very first project I loaded (which was created in 4.5.1) worked fine for a few minutes and then crashed. Now, I can no longer even open a blank project in either 4.5 or 4.6. However, 4.4.3 and 4.7 preview still work without issue. I have uninstalled and reinstalled 4.6 and verified the installation multiple times. Can anyone suggest how to fix this?

This is the callstack from my last attempt to open 4.6.1

MachineId:B0B50FB543E29FBED614FCAE857AE63E
EpicAccountId:d7768df3ff2646929131b74a0a6d304d

Unknown exception - code 00000001 (first/second chance not available)

Assertion failed: GConfig->GetInt(TEXT(‘TextureStreaming’), TEXT(‘MinTextureResidentMipCount’), MinTextureResidentMipCount, GEngineIni) [File:D:\BuildFarm\buildmachine_++depot+UE4-Releases+4.6\Engine\Source\Runtime\Engine\Private\SystemSettings.c

KERNELBASE + 37901 bytes
UE4Editor_Core + 3092349 bytes
UE4Editor_Core + 1597688 bytes
UE4Editor_Core + 1479058 bytes
UE4Editor_Engine + 8960551 bytes
UE4Editor!FEngineLoop::PreInit() + 6099 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.6\engine\source\runtime\launch\private\launchengineloop.cpp:1037]
UE4Editor!GuardedMain() + 236 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.6\engine\source\runtime\launch\private\launch.cpp:110]
UE4Editor!GuardedMainWrapper() + 26 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.6\engine\source\runtime\launch\private\windows\launchwindows.cpp:126]
UE4Editor!WinMain() + 249 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.6\engine\source\runtime\launch\private\windows\launchwindows.cpp:202]
UE4Editor!__tmainCRTStartup() + 329 bytes [f:\dd\vctools\crt\crtw32\dllstuff\crtexe.c:618]

2

Well, I completely uninstalled Unreal from my computer and reinstalled, then redownloaded 4.6.1 and before I could even open a project, it crashed. I’m so tired of trying to sort this out myself.

3

MachineId:B0B50FB543E29FBED614FCAE857AE63E
EpicAccountId:d7768df3ff2646929131b74a0a6d304d

Unknown exception - code 00000001 (first/second chance not available)

Fatal error: [File:D:\BuildFarm\buildmachine_++depot+UE4-Releases+4.6\Engine\Source\Runtime\Core\Private\HAL\FileManagerGeneric.cpp] [Line: 613]
Invalid BufferCount=0 while reading C://Users//Jonathan//AppData//Local//UnrealEngine//4.6//DerivedDataCach

KERNELBASE + 37901 bytes
UE4Editor_Core + 3092349 bytes
UE4Editor_Core + 1597391 bytes
UE4Editor_Core + 655293 bytes
UE4Editor_Core + 776880 bytes
UE4Editor_DerivedDataCache + 121784 bytes
UE4Editor_DerivedDataCache + 128037 bytes
UE4Editor_DerivedDataCache + 132575 bytes
UE4Editor_DerivedDataCache + 130618 bytes
UE4Editor_DerivedDataCache + 132899 bytes
UE4Editor_DerivedDataCache + 127363 bytes
UE4Editor_DerivedDataCache + 133277 bytes
UE4Editor_DerivedDataCache + 131387 bytes
UE4Editor_DerivedDataCache + 133040 bytes
UE4Editor_DerivedDataCache + 30056 bytes
UE4Editor_DerivedDataCache + 31003 bytes
UE4Editor_DerivedDataCache + 31100 bytes
UE4Editor_DerivedDataCache + 119432 bytes
UE4Editor_Core + 1541952 bytes
UE4Editor_Core + 1541995 bytes
UE4Editor_Engine + 4347027 bytes
UE4Editor!FEngineLoop::PreInit() + 8906 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.6\engine\source\runtime\launch\private\launchengineloop.cpp:1265]
UE4Editor!GuardedMain() + 236 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.6\engine\source\runtime\launch\private\launch.cpp:110]
UE4Editor!GuardedMainWrapper() + 26 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.6\engine\source\runtime\launch\private\windows\launchwindows.cpp:126]
UE4Editor!WinMain() + 249 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.6\engine\source\runtime\launch\private\windows\launchwindows.cpp:202]
UE4Editor!__tmainCRTStartup() + 329 bytes [f:\dd\vctools\crt\crtw32\dllstuff\crtexe.c:618]

4

Hey SVR33,

I’m looking into your crashes right now. I notice that there’s a Config file mentioned. Just to test, could you try clearing out the config files from your engine install before reopening the editor? They should be located at: C:\Users\YOUR_NAME\AppData\Local\UnrealEngine\4.6\Saved\Config\Windows. Just delete (or move) the files and try to reopen the editor. Let me know if it still crashes when opened.

5

Hi Jonathan, I cleared out the folder and but 4.6 crashed again. New CrashLog and UE4.Log files attached.

Thank you

link text
link text

6

Hey SVR33,

I’m closing this thread as a duplicate of your other thread:

I’l continue to offer help in that thread.

Thanks,

Jonathan