Hi guys,
i have been getting a few of those now:
[2016.11.25-10.47.12:151][186]LogSourceControl: Attempting "svn status --show-updates --verbose --xml "C:/Users/******/Documents/Elena/Unreal/Content/FirstPersonBP/Blueprints/GamemodeAndPlayer/GM_Default.uasset" --non-interactive --trust-server-cert --username ***** --password *****"
[2016.11.25-10.47.12:438][186]Cmd: OBJ SAVEPACKAGE PACKAGE="/Game/FirstPersonBP/Blueprints/GamemodeAndPlayer/GM_Default" FILE="../../../../Unreal/Content/FirstPersonBP/Blueprints/GamemodeAndPlayer/GM_Default.uasset" SILENT=true
[2016.11.25-10.47.13:043][186]LogSavePackage: Save=595.87ms
[2016.11.25-10.47.13:043][186]LogSavePackage: Moving '../../../../Unreal/Saved/GM_Default4AA055274DE7E2E6DF8602ACD9343271.tmp' to '../../../../Unreal/Content/FirstPersonBP/Blueprints/GamemodeAndPlayer/GM_Default.uasset'
[2016.11.25-10.47.13:051][186]LogSavePackage:Display: Finished SavePackage ../../../../Unreal/Content/FirstPersonBP/Blueprints/GamemodeAndPlayer/GM_Default.uasset
[2016.11.25-10.47.59:598][ 6]LogWindows: Windows GetLastError: Der Vorgang wurde erfolgreich beendet. (0)
[2016.11.25-10.48.59:603][ 6]LogFMOD:Warning: c:\jk\workspace\Build__1.8__UE4Libs_Win\lowlevel_api\platforms\win\src\fmod_output_wasapi.cpp(531) - Starvation detected in WASAPI output buffer!
[2016.11.25-10.48.59:603][ 6]LogWindows:Warning: CreateProc failed (2) ..\..\..\Engine\Binaries/Win64/CrashReportClient.exe -AppName=UE4-Project43 -CrashGUID=UE4CC-Windows-77B90DF5404D34FB6BDF8695E0037EFB_0000 -DebugSymbols=..\..\..\Engine\Intermediate\Symbols
[2016.11.25-10.48.59:603][ 6]LogWindows: Could not start CrashReportClient.exe
[2016.11.25-10.48.59:603][ 6]LogMemory: Platform Memory Stats for Windows
[2016.11.25-10.48.59:603][ 6]LogMemory: Process Physical Memory: 7623.06 MB used, 7937.09 MB peak
[2016.11.25-10.48.59:603][ 6]LogMemory: Process Virtual Memory: 9514.81 MB used, 10000.65 MB peak
[2016.11.25-10.48.59:603][ 6]LogMemory: Physical Memory: 16049.82 MB used, 32607.07 MB total
[2016.11.25-10.48.59:603][ 6]LogMemory: Virtual Memory: 10876.25 MB used, 134217728.00 MB total
[2016.11.25-10.48.59:603][ 6]LogCrashTracker:
[2016.11.25-10.48.59:603][ 6]LogWindows:Error: === Critical error: ===
Assertion failed: ArrayIndex < ArrayDim [File:E:\Elena\UnrealEngine-4.12.5-release\Engine\Source\Runtime\CoreUObject\Public\UObject\UnrealType.h] [Line: 286]
There is only a windows window with an OK button so crash reporting is not possible.
We are using FMOD, VR and a slightly modified engine (Not in UnrealType.h, only in the HMDMonitor classes)
This crash seems to be random. Does anyone know how to not have this crash?
Our game will be released soon, so no pressure 
(Never occured in a live game, only in the editor)
Regard,
The Fudge