Ue4.5.1 and ue4.4.3 crashing on launch (64-bit windows 8.1)

Development Platform & Builds
, , ,
1

here is the .dmp file. No other logs are being generated:
link text

UE4.5.1 is crashing on launch. I get to the project browser but as soon as I move my mouse it crashes (sometimes with a log). I’m not sure if it’s causing the or not (I see it mentioned in this log) but I have a DK2 and it’s service running. I killed it with the same result.
Any ideas?

windows 64-bit 8.1
GeForce GTX 670
32 GB
i7-3770k

Fatal error!

Unhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0x00000000

OVRDisplayRT64.dll!UnknownFunction (0x00007ffc218d5615) + 0 bytes [UnknownFile:0]
UE4Editor-D3D11RHI.dll!UnknownFunction (0x00007ffc05cb0412) + 0 bytes [UnknownFile:0]
UE4Editor-D3D11RHI.dll!UnknownFunction (0x00007ffc05cda268) + 0 bytes [UnknownFile:0]
UE4Editor-RHI.dll!UnknownFunction (0x00007ffc11661a7c) + 0 bytes [UnknownFile:0]
UE4Editor-SlateRHIRenderer.dll!UnknownFunction (0x00007ffc05b0ef68) + 0 bytes [UnknownFile:0]
UE4Editor-SlateCore.dll!UnknownFunction (0x00007ffc0e4d71e4) + 0 bytes [UnknownFile:0]
UE4Editor-Slate.dll!UnknownFunction (0x00007ffc0cde1631) + 0 bytes [UnknownFile:0]
UE4Editor-Slate.dll!UnknownFunction (0x00007ffc0cde97ed) + 0 bytes [UnknownFile:0]
UE4Editor-Slate.dll!UnknownFunction (0x00007ffc0cdc9207) + 0 bytes [UnknownFile:0]
UE4Editor-Slate.dll!UnknownFunction (0x00007ffc0cdb8934) + 0 bytes [UnknownFile:0]
UE4Editor-Core.dll!UnknownFunction (0x00007ffc0ebc3c4c) + 0 bytes [UnknownFile:0]
UE4Editor-Core.dll!UnknownFunction (0x00007ffc0ebb62ab) + 0 bytes [UnknownFile:0]
UE4Editor-Core.dll!UnknownFunction (0x00007ffc0ebc5019) + 0 bytes [UnknownFile:0]
UE4Editor-Core.dll!UnknownFunction (0x00007ffc0ebb3542) + 0 bytes [UnknownFile:0]
USER32.dll!UnknownFunction (0x00007ffc254e2434) + 0 bytes [UnknownFile:0]
USER32.dll!UnknownFunction (0x00007ffc254e2297) + 0 bytes [UnknownFile:0]
UE4Editor-Core.dll!UnknownFunction (0x00007ffc0ec62ed6) + 0 bytes [UnknownFile:0]
UE4Editor.exe!FEngineLoop::Tick() (0x00007ff79fb1a752) + 8 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.5\engine\source\runtime\launch\private\launchengineloop.cpp:2111]
UE4Editor.exe!GuardedMain() (0x00007ff79fb0f9df) + 0 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.5\engine\source\runtime\launch\private\launch.cpp:133]
UE4Editor.exe!GuardedMainWrapper() (0x00007ff79fb0fa4a) + 5 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.5\engine\source\runtime\launch\private\windows\launchwindows.cpp:125]
UE4Editor.exe!WinMain() (0x00007ff79fb1bf19) + 17 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.5\engine\source\runtime\launch\private\windows\launchwindows.cpp:201]
UE4Editor.exe!__tmainCRTStartup() (0x00007ff79fb1cdc9) + 21 bytes [f:\dd\vctools\crt\crtw32\dllstuff\crtexe.c:618]
KERNEL32.DLL!UnknownFunction (0x00007ffc276916ad) + 0 bytes [UnknownFile:0]
ntdll.dll!UnknownFunction (0x00007ffc27ca4409) + 0 bytes [UnknownFile:0]
ntdll.dll!UnknownFunction (0x00007ffc27ca4409) + 0 bytes [UnknownFile:0]

2

Could you please attach all of the required files and Info on your system that is detailed here:

This will help us determine the cause of the error you are receiving.
Thank you!

3

Branch:
Binary build from unreal Launcher

Build version:
4.5.1

Repro Steps:

open launcher
click on launch 4.5.1
when the project browser comes up move the mouse to crash
(this happens 100% of the time)

system Specs:

i7-3770k
GeForce GTX 670
32 GB

4

Please provide the crash log and dmp file requested in the resource that linked.

5

I added the .dmp file (renamed to .txt) UE4 doesn’t seem to be generating logs. My guess is it’s crapping out before they are made.

6

I uninstalled and updated my Nvidia drivers, removed all the Rift and (just for good measure) Adobe CC run times then I re-installed the launcher and UE4.5.1 Now it works. :slight_smile: I have no idea what part fixed it.
When I start installing the OR drivers and what not I’ll pop back in if it breaks.