Engine crashes when I copy selection in blueprint editor

Every time I copy a selected group of events/functions/etc. in the blueprint editor the engine immediately crashes. I am using version 4.6.1. I will add a log/crash report if it happens again (it just occurred twice in a row).

Hello Dubforce,

I have a few questions for you that will help narrow down what issue it is that you are experiencing.

Quick questions:

  1. Can you reproduce this in a clean project?
  2. If you can, can you provide a detailed set of steps to reproduce this issue?
  3. Can you provide a screen shot of the blueprints that you are having an issue with?
  4. When you say that it happens when you “copy a select group of …” do you mean that it happens during the act of copying or do you mean that it happens after you have pasted the items?
  5. Could you provide your dxdiag along with your crash report?
  1. Yes
  2. Steps: Open engine. New project → blueprint → twin stick shooter → blueprints → twinStickPlayer (the player blueprint, can’t remember if this is the exact name) → ctrl+A (to select everything in the blueprint) → ctrl+c (to copy) → crash
  3. Screenshot: http://i.imgur.com/xmSDZjj.png
  4. I mean if I select anything in the blueprint and copy. I use ctrl+c to copy. The second I press the shortcut the app crashes.
  5. Link to dxidag: http://pastebin.com/6e2puKXK

Hope this helps

Here is the callstack from the crash:


Access violation - code c0000005 (first/second chance not available)

Ensure condition failed: Node->IsValidLowLevel() [File:D:\BuildFarm\buildmachine_++depot+UE4-Releases+4.6\Engine\Source\Editor\GraphEditor\Private\SGraphEditorImpl.cpp] [Line: 125]
Node is invalid

UE4Editor_UnrealEd + 1635874 bytes
UE4Editor_Kismet + 756544 bytes
UE4Editor_Kismet + 992849 bytes
UE4Editor_Kismet + 1007926 bytes
UE4Editor_Slate + 525779 bytes
UE4Editor_Slate + 825548 bytes
UE4Editor_GraphEditor + 1659343 bytes
UE4Editor_Slate + 429026 bytes
UE4Editor_Slate + 155469 bytes
UE4Editor_Slate + 161930 bytes
UE4Editor_Slate + 827913 bytes
UE4Editor_Slate + 766152 bytes
UE4Editor_Core + 2483908 bytes
UE4Editor_Core + 2400763 bytes
UE4Editor_Core + 2489275 bytes
UE4Editor_Core + 2387186 bytes
user32 + 105425 bytes
user32 + 104666 bytes
UE4Editor_Core + 2490486 bytes
UE4Editor!FEngineLoop::Tick() + 3434 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.6\engine\source\runtime\launch\private\launchengineloop.cpp:2193]
UE4Editor!GuardedMain() + 479 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.6\engine\source\runtime\launch\private\launch.cpp:131]
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]

Hello Dubforce,

I was able to reproduce this issue. I have submitted a report (UE-7099) to the developers for further consideration. I will provide updates with any pertinent information as it becomes available. Thank you for your information and time.

Make it a great day