Crash on load after adding function to interface

I’m having an issue with a blueprint interface. Specifically, whenever I add a new function, and add an input argument to it, the editor crashes when I relaunch it. The input type doesn’t matter. It crashes if it’s a bool, text, or struct. I can add functions with arguments to other interfaces, and it doesn’t create any problems that I can see. Additionally, once I add the function and before I relaunch, I intermittently see soft crashes, in which the CrashReportClient.exe is invoked, but doesn’t take down the editor.

The crash is pretty generic, and appears to be a general crash that occurs when the crash reporter doesn’t launch correctly (based on searching the error in question).

39709-bpicrash.jpg

There are already a dozen of so functions in the interface in question that use input arguments.

I’m getting the same crash on multiple computers, so some of the proposed solutions I’ve seen (it’s a windows install issue) seem unlikely culprits.

The log file doesn’t seem to be giving up much in terms of clues either:

[2015.04.22-16.07.39:653][  0]MapCheck: New page: Map Check
[2015.04.22-16.07.39:653][  0]LightingResults: New page: Lighting Build
[2015.04.22-16.07.39:663][  0]LogParticles: Destroying 0 GPU particle simulations for FXSystem 0x0000006FC61736A0
[2015.04.22-16.08.08:061][  0]LogWindows: === Critical error: ===
Fatal error!

Unhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0x00000008

UE4Editor-CoreUObject.dll!UnknownFunction (0x00007ffec1e3882e) + 0 bytes [UnknownFile:0]
UE4Editor-CoreUObject.dll!UnknownFunction (0x00007ffec1d4d9a9) + 0 bytes [UnknownFile:0]
UE4Editor-CoreUObject.dll!UnknownFunction (0x00007ffec1dba84c) + 0 bytes [UnknownFile:0]
UE4Editor-CoreUObject.dll!UnknownFunction (0x00007ffec1db8946) + 0 bytes [UnknownFile:0]
UE4Editor-Engine.dll!UnknownFunction (0x00007ffeb7023a05) + 0 bytes [UnknownFile:0]
UE4Editor-KismetCompiler.dll!UnknownFunction (0x00007ffec21ecb14) + 0 bytes [UnknownFile:0]
UE4Editor-KismetCompiler.dll!UnknownFunction (0x00007ffec21ee5ed) + 0 bytes [UnknownFile:0]
UE4Editor-KismetCompiler.dll!UnknownFunction (0x00007ffec21edfe2) + 0 bytes [UnknownFile:0]
UE4Editor-UnrealEd.dll!UnknownFunction (0x00007ffeb4f3ea3b) + 0 bytes [UnknownFile:0]
UE4Editor-Engine.dll!UnknownFunction (0x00007ffeb692ec71) + 0 bytes [UnknownFile:0]
UE4Editor-CoreUObject.dll!UnknownFunction (0x00007ffec1cdacd1) + 0 bytes [UnknownFile:0]
UE4Editor-CoreUObject.dll!UnknownFunction (0x00007ffec1d87156) + 0 bytes [UnknownFile:0]
UE4Editor-CoreUObject.dll!UnknownFunction (0x00007ffec1da1614) + 0 bytes [UnknownFile:0]
UE4Editor-CoreUObject.dll!UnknownFunction (0x00007ffec1d86997) + 0 bytes [UnknownFile:0]
UE4Editor-CoreUObject.dll!UnknownFunction (0x00007ffec1d873db) + 0 bytes [UnknownFile:0]
UE4Editor-CoreUObject.dll!UnknownFunction (0x00007ffec1da36eb) + 0 bytes [UnknownFile:0]
UE4Editor-CoreUObject.dll!UnknownFunction (0x00007ffec1e04875) + 0 bytes [UnknownFile:0]
UE4Editor-CoreUObject.dll!UnknownFunction (0x00007ffec1dc332e) + 0 bytes [UnknownFile:0]
UE4Editor-CoreUObject.dll!UnknownFunction (0x00007ffec1dc2622) + 0 bytes [UnknownFile:0]
UE4Editor-CoreUObject.dll!UnknownFunction (0x00007ffec1dc3699) + 0 bytes [UnknownFile:0]
UE4Editor-CoreUObject.dll!UnknownFunction (0x00007ffec1dc2622) + 0 bytes [UnknownFile:0]
UE4Editor-CoreUObject.dll!UnknownFunction (0x00007ffec1dc2424) + 0 bytes [UnknownFile:0]
UE4Editor-CoreUObject.dll!UnknownFunction (0x00007ffec1d8e50d) + 0 bytes [UnknownFile:0]
UE4Editor-CoreUObject.dll!UnknownFunction (0x00007ffec1dc1750) + 0 bytes [UnknownFile:0]
UE4Editor-CoreUObject.dll!UnknownFunction (0x00007ffec1d884f8) + 0 bytes [UnknownFile:0]
UE4Editor-CoreUObject.dll!UnknownFunction (0x00007ffec1d9a71e) + 0 bytes [UnknownFile:0]
UE4Editor-CoreUObject.dll!UnknownFunction (0x00007ffec1e046bb) + 0 bytes [UnknownFile:0]
UE4Editor-CoreUObject.dll!UnknownFunction (0x00007ffec1dc332e) + 0 bytes [UnknownFile:0]
UE4Editor-CoreUObject.dll!UnknownFunction (0x00007ffec1dc2622) + 0 bytes [UnknownFile:0]
UE4Editor-CoreUObject.dll!UnknownFunction (0x00007ffec1dc3699) + 0 bytes [UnknownFile:0]
UE4Editor-CoreUObject.dll!UnknownFunction (0x00007ffec1dc2622) + 0 bytes [UnknownFile:0]
UE4Editor-CoreUObject.dll!UnknownFunction (0x00007ffec1dc2424) + 0 bytes [UnknownFile:0]
UE4Editor-CoreUObject.dll!UnknownFunction (0x00007ffec1d8e50d) + 0 bytes [UnknownFile:0]
UE4Editor-CoreUObject.dll!UnknownFunction (0x00007ffec1dc1750) + 0 bytes [UnknownFile:0]
UE4Editor-CoreUObject.dll!UnknownFunction (0x00007ffec1d884f8) + 0 bytes [UnknownFile:0]
UE4Editor-CoreUObject.dll!UnknownFunction (0x00007ffec1d9a71e) + 0 bytes [UnknownFile:0]
UE4Editor-CoreUObject.dll!UnknownFunction (0x00007ffec1e046bb) + 0 bytes [UnknownFile:0]
UE4Editor-CoreUObject.dll!UnknownFunction (0x00007ffec1dc332e) + 0 bytes [UnknownFile:0]
UE4Editor-CoreUObject.dll!UnknownFunction (0x00007ffec1dc2622) + 0 bytes [UnknownFile:0]
UE4Editor-CoreUObject.dll!UnknownFunction (0x00007ffec1dc3699) + 0 bytes [UnknownFile:0]
UE4Editor-CoreUObject.dll!UnknownFunction (0x00007ffec1dc2622) + 0 bytes [UnknownFile:0]
UE4Editor-CoreUObject.dll!UnknownFunction (0x00007ffec1dc2424) + 0 bytes [UnknownFile:0]
UE4Editor-CoreUObject.dll!UnknownFunction (0x00007ffec1d8e50d) + 0 bytes [UnknownFile:0]
UE4Editor-CoreUObject.dll!UnknownFunction (0x00007ffec1dc1750) + 0 bytes [UnknownFile:0]
UE4Editor-CoreUObject.dll!UnknownFunction (0x00007ffec1d884f8) + 0 bytes [UnknownFile:0]
UE4Editor-CoreUObject.dll!UnknownFunction (0x00007ffec1d9a71e) + 0 bytes [UnknownFile:0]
UE4Editor-CoreUObject.dll!UnknownFunction (0x00007ffec1e046bb) + 0 bytes [UnknownFile:0]
UE4Editor-CoreUObject.dll!UnknownFunction (0x00007ffec1dc332e) + 0 bytes [UnknownFile:0]
UE4Editor-CoreUObject.dll!UnknownFunction (0x00007ffec1dc2622) + 0 bytes [UnknownFile:0]
UE4Editor-CoreUObject.dll!UnknownFunction (0x00007ffec1dc3699) + 0 bytes [UnknownFile:0]
UE4Editor-CoreUObject.dll!UnknownFunction (0x00007ffec1dc2622) + 0 bytes [UnknownFile:0]
UE4Editor-CoreUObject.dll!UnknownFunction (0x00007ffec1dc2424) + 0 bytes [UnknownFile:0]
UE4Editor-CoreUObject.dll!UnknownFunction (0x00007ffec1d8e50d) + 0 bytes [UnknownFile:0]
UE4Editor-CoreUObject.dll!UnknownFunction (0x00007ffec1dc1750) + 0 bytes [UnknownFile:0]
UE4Editor-CoreUObject.dll!UnknownFunction (0x00007ffec1d884f8) + 0 bytes [UnknownFile:0]
UE4Editor-CoreUObject.dll!UnknownFunction (0x00007ffec1d9a71e) + 0 bytes [UnknownFile:0]
UE4Editor-CoreUObject.dll!UnknownFunction (0x00007ffec1e046bb) + 0 bytes [UnknownFile:0]
UE4Editor-UnrealEd.dll!UnknownFunction (0x00007ffeb485192c) + 0 bytes [UnknownFile:0]
UE4Editor-UnrealEd.dll!UnknownFunction (0x00007ffeb48412ed) + 0 bytes [UnknownFile:0]
UE4Editor-UnrealEd.dll!UnknownFunction (0x00007ffeb482babd) + 0 bytes [UnknownFile:0]
UE4Editor-UnrealEd.dll!UnknownFunction (0x00007ffeb4bb35a0) + 0 bytes [UnknownFile:0]
UE4Editor-UnrealEd.dll!UnknownFunction (0x00007ffeb48b36c4) + 0 bytes [UnknownFile:0]
UE4Editor-UnrealEd.dll!UnknownFunction (0x00007ffeb48b3388) + 0 bytes [UnknownFile:0]
UE4Editor-UnrealEd.dll!UnknownFunction (0x00007ffeb4beda89) + 0 bytes [UnknownFile:0]
UE4Editor-UnrealEd.dll!UnknownFunction (0x00007ffeb4bb1fde) + 0 bytes [UnknownFile:0]
UE4Editor.exe!UnknownFunction (0x00007ff7b23ef91d) + 0 bytes [UnknownFile:0]
UE4Editor.exe!UnknownFunction (0x00007ff7b23efa4a) + 0 bytes [UnknownFile:0]
UE4Editor.exe!UnknownFunction (0x00007ff7b23fcbb9) + 0 bytes [UnknownFile:0]
UE4Editor.exe!UnknownFunction (0x00007ff7b23fdb79) + 0 bytes [UnknownFile:0]
KERNEL32.DLL!UnknownFunction (0x00007ffee68f13d2) + 0 bytes [UnknownFile:0]
ntdll.dll!UnknownFunction (0x00007ffee6a45444) + 0 bytes [UnknownFile:0]
ntdll.dll!UnknownFunction (0x00007ffee6a45444) + 0 bytes [UnknownFile:0]


[2015.04.22-16.08.08:201][  0]LogExit: Executing StaticShutdownAfterError
[2015.04.22-16.08.08:226][  0]LogWindows: FPlatformMisc::RequestExit(1)
[2015.04.22-16.08.08:226][  0]Log file closed, 04/22/15 12:08:08

Any help would be appreciated.