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[BUG] Crash when compiling a working Task

I've created a task for a Behaviour Tree that does alot of casting and creating arrays. It randomly crashes when I compile the task and there are no errors. I can stop the crashing by deleting and re-creating the exact same Blueprint, but this seems to only aliviate the problem for a few hours.

Here's my crash log:

!Id:42d214ac3f1f855213e64ccaf7ff324c

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

Fatal error!

UE4Editor_CoreUObject + 532768 bytes UE4Editor_CoreUObject + 688546 bytes UE4Editor_CoreUObject + 1128472 bytes UE4Editor_CoreUObject + 1121062 bytes UE4Editor_Engine + 8844209 bytes UE4Editor_UnrealEd + 9163685 bytes UE4Editor_UnrealEd + 9138121 bytes UE4Editor_UnrealEd + 8985004 bytes UE4Editor_Kismet + 595751 bytes UE4Editor_Kismet + 834589 bytes UE4Editor_Kismet + 854871 bytes UE4Editor_Slate + 545350 bytes UE4Editor_Slate + 1884845 bytes UE4Editor_Slate + 1691884 bytes UE4Editor_Slate + 2512538 bytes UE4Editor_Slate + 2748777 bytes UE4Editor_Slate + 794079 bytes UE4Editor_Slate + 727433 bytes UE4Editor_Core + 2503893 bytes UE4Editor_Core + 2422897 bytes UE4Editor_Core + 2508318 bytes UE4Editor_Core + 2410210 bytes user32 + 105425 bytes user32 + 104666 bytes UE4Editor_Core + 2509510 bytes UE4Editor!FEngineLoop::Tick() + 2877 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.4\engine\source\runtime\launch\private\launchengineloop.cpp:2080] UE4Editor!GuardedMain() + 476 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.4\engine\source\runtime\launch\private\launch.cpp:133] UE4Editor!GuardedMainWrapper() + 26 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.4\engine\source\runtime\launch\private\windows\launchwindows.cpp:125] UE4Editor!WinMain() + 249 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.4\engine\source\runtime\launch\private\windows\launchwindows.cpp:201] UE4Editor!__tmainCRTStartup() + 329 bytes [f:\dd\vctools\crt\crtw32\dllstuff\crtexe.c:618]

Product Version: Not Selected
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asked Sep 12 '14 at 11:18 AM in Bug Reports

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Jimmy_Jazz
66 11 16 23

avatar image Jimmy_Jazz Sep 12 '14 at 11:27 AM

I also get the crash now if I delete everything within the Task (Nodes, Events, Macros, Functions etc) and recompile.

!Id:42d214ac3f1f855213e64ccaf7ff324c

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

Fatal error!

UE4Editor_CoreUObject + 532768 bytes UE4Editor_CoreUObject + 688546 bytes UE4Editor_CoreUObject + 1128472 bytes UE4Editor_CoreUObject + 1121062 bytes UE4Editor_Engine + 8844209 bytes UE4Editor_UnrealEd + 9163685 bytes UE4Editor_UnrealEd + 9138121 bytes UE4Editor_UnrealEd + 8985004 bytes UE4Editor_Kismet + 595751 bytes UE4Editor_Kismet + 834589 bytes UE4Editor_Kismet + 854871 bytes UE4Editor_Slate + 545350 bytes UE4Editor_Slate + 1884845 bytes UE4Editor_Slate + 1691884 bytes UE4Editor_Slate + 2512538 bytes UE4Editor_Slate + 2748777 bytes UE4Editor_Slate + 794079 bytes UE4Editor_Slate + 727433 bytes UE4Editor_Core + 2503893 bytes UE4Editor_Core + 2422897 bytes UE4Editor_Core + 2508318 bytes UE4Editor_Core + 2410210 bytes user32 + 105425 bytes user32 + 104666 bytes UE4Editor_Core + 2509510 bytes UE4Editor!FEngineLoop::Tick() + 2877 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.4\engine\source\runtime\launch\private\launchengineloop.cpp:2080] UE4Editor!GuardedMain() + 476 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.4\engine\source\runtime\launch\private\launch.cpp:133] UE4Editor!GuardedMainWrapper() + 26 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.4\engine\source\runtime\launch\private\windows\launchwindows.cpp:125] UE4Editor!WinMain() + 249 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.4\engine\source\runtime\launch\private\windows\launchwindows.cpp:201] UE4Editor!__tmainCRTStartup() + 329 bytes [f:\dd\vctools\crt\crtw32\dllstuff\crtexe.c:618]

avatar image Adam Davis STAFF Sep 12 '14 at 05:40 PM

Hi Jimmy_Jazz,

Can you post your logs here so we can have a look? Additionally, can you reproduce this in a clean project with no additional content? Thank you!

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2 answers: sort voted first

Hi Jimmy_Jazz,

I am happy to hear that you are no longer experiencing this issue. I will remark this as answered. If you do experience this again, please comment with the information requested earlier. Thank you!

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answered Sep 19 '14 at 05:45 PM

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Hi Jimmy_Jazz,

We have not heard from you in quite some time. I am marking this thread as answered for tracking purposes. If you are still experiencing this crash, please post here with the requested information.

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answered Sep 19 '14 at 04:18 PM

avatar image Jimmy_Jazz Sep 19 '14 at 05:10 PM

Sorry for the late reply. Despite the crash being 100% consistent on the day of reporting, it was impossible to reproduce the following day :-s

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