x

Search in
Sort by:

Question Status:

Search help

  • Simple searches use one or more words. Separate the words with spaces (cat dog) to search cat,dog or both. Separate the words with plus signs (cat +dog) to search for items that may contain cat but must contain dog.
  • You can further refine your search on the search results page, where you can search by keywords, author, topic. These can be combined with each other. Examples
    • cat dog --matches anything with cat,dog or both
    • cat +dog --searches for cat +dog where dog is a mandatory term
    • cat -dog -- searches for cat excluding any result containing dog
    • [cats] —will restrict your search to results with topic named "cats"
    • [cats] [dogs] —will restrict your search to results with both topics, "cats", and "dogs"

Office Holiday

Epic Games' offices will be on holiday from June 22nd to July 7th. During this period support will be limited. Our offices will reopen on Monday, July 8th. 

Editor crashes when selecting an UMG Animation with less tracks than the currently selected one

I already submitted a bunch of crash reports while trying to work with the UMG Animations, but I figured I'd create a report in here aswell. This is on the launcher 4.10 release 4.10.0-2758231+++depot+UE4-Releases+4.10 on Windows 7 SP1 x64

Steps that work for me:

  1. Open an existing UMG Widget that has animations in it (and that animation has at least one track). In my case it was an animation that flashes two Text blocks by changing color values over time.

  2. Take care that the existing Animation is not selected (no tracks visible in Sequencer).

  3. Add a new Animation and start adding tracks

If you want to see a crash here, add a 4th step that selects the first animation while the tracks of the second one are visible.

Steps that crash:

  1. Open the same existing UMG Widget as earlier.

  2. Select the existing Animation (so the tracks become visible).

  3. Add a new Animation and select it in the list so you can add new tracks. This crashes the Editor.

Exception info (from the crash reporter):

 "Assertion failed: (Index >= 0) & (Index < ArrayNum) [File:D:\BuildFarm\buildmachine_++depot+UE4-Releases+4.10\Engine\Source\Runtime\Core\Public\Containers\Array.h] [Line: 678] 
     A
     
     UE4Editor_Core!FDebug::AssertFailed() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\core\private\misc\outputdevice.cpp:374]
     UE4Editor_Sequencer!TArray<TSharedRef<FMovieSceneSequenceInstance,0>,FDefaultAllocator>::Last() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\core\public\containers\array.h:825]
     UE4Editor_Sequencer!FSequencer::GetFocusedMovieSceneSequence() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\editor\sequencer\private\sequencer.cpp:292]
     UE4Editor_Sequencer!FSequencer::OnViewRangeChanged() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\editor\sequencer\private\sequencer.cpp:1221]
     UE4Editor_Sequencer!TBaseSPMethodDelegateInstance<0,FSequencer,0,TTypeWrapper<void> __cdecl(TRange<float>,enum EViewRangeInterpolation,bool)>::Execute() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\core\public\delegates\delegateinstancesimpl_variadics.inl:282]
     UE4Editor_Sequencer!TBaseSPMethodDelegateInstance<0,FSequencer,0,void __cdecl(TRange<float>,enum EViewRangeInterpolation,bool)>::ExecuteIfSafe() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\core\public\delegates\delegateinstancesimpl_variadics.inl:388]
     UE4Editor_Sequencer!TBaseDelegate<void,TRange<float>,enum EViewRangeInterpolation,bool>::ExecuteIfBound() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\core\public\delegates\delegatesignatureimpl_variadics.inl:482]
     UE4Editor_Sequencer!TBaseFunctorDelegateInstance<TTypeWrapper<void> __cdecl(float,float),<lambda_ad6845849e7768712c68609036365067> >::Execute() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\core\public\delegates\delegateinstancesimpl_variadics.inl:1008]
     UE4Editor_UnrealEd!SCurveEditor::ZoomToFitHorizontal() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\editor\unrealed\private\scurveeditor.cpp:2379]
     UE4Editor_UnrealEd!SCurveEditor::ZoomToFit() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\editor\unrealed\private\scurveeditor.cpp:2482]
     UE4Editor_Sequencer!SSequencerCurveEditor::NodeTreeSelectionChanged() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\editor\sequencer\private\ssequencercurveeditor.cpp:181]
     UE4Editor_Sequencer!TBaseSPMethodDelegateInstance<0,SSequencerCurveEditor,0,TTypeWrapper<void> __cdecl(void)>::Execute() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\core\public\delegates\delegateinstancesimpl_variadics.inl:282]
     UE4Editor_Sequencer!TBaseSPMethodDelegateInstance<0,SSequencerCurveEditor,0,void __cdecl(void)>::ExecuteIfSafe() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\core\public\delegates\delegateinstancesimpl_variadics.inl:387]
     UE4Editor_Sequencer!TBaseMulticastDelegate<void>::Broadcast() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\core\public\delegates\delegatesignatureimpl_variadics.inl:809]
     UE4Editor_Sequencer!FSequencerSelection::EmptySelectedOutlinerNodes() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\editor\sequencer\private\sequencerselection.cpp:155]
     UE4Editor_Sequencer!FSequencer::ResetToNewRootSequence() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\editor\sequencer\private\sequencer.cpp:302]
     UE4Editor_UMGEditor!FWidgetBlueprintEditor::ChangeViewedAnimation() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\editor\umgeditor\private\widgetblueprinteditor.cpp:594]
     UE4Editor_UMGEditor!SUMGAnimationList::OnSelectionChanged() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\editor\umgeditor\private\tabfactory\animationtabsummoner.cpp:396]
     UE4Editor_UMGEditor!TBaseSPMethodDelegateInstance<0,SUMGAnimationList,0,TTypeWrapper<void> __cdecl(TSharedPtr<FWidgetAnimationListItem,0>,enum ESelectInfo::Type)>::Execute() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\core\public\delegates\delegateinstancesimpl_variadics.inl:282]
     UE4Editor_UMGEditor!TBaseSPMethodDelegateInstance<0,SUMGAnimationList,0,void __cdecl(TSharedPtr<FWidgetAnimationListItem,0>,enum ESelectInfo::Type)>::ExecuteIfSafe() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\core\public\delegates\delegateinstancesimpl_variadics.inl:388]
     UE4Editor_UMGEditor!TBaseDelegate<void,TSharedPtr<FWidgetAnimationListItem,0>,enum ESelectInfo::Type>::ExecuteIfBound() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\core\public\delegates\delegatesignatureimpl_variadics.inl:482]
     UE4Editor_UMGEditor!SListView<TSharedPtr<FWidgetAnimationListItem,0> >::Private_SignalSelectionChanged() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\slate\public\widgets\views\slistview.h:609]
     UE4Editor_UMGEditor!STableRow<TSharedPtr<FWidgetAnimationListItem,0> >::OnMouseButtonUp() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\slate\public\widgets\views\stablerow.h:446]
     UE4Editor_Slate!<lambda_4ba5b0c116ad939f50a9b616659f063a>::operator()() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:4276]
     UE4Editor_Slate!FEventRouter::Route<FReply,FEventRouter::FToLeafmostPolicy,FPointerEvent,<lambda_4ba5b0c116ad939f50a9b616659f063a> >() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:214]
     UE4Editor_Slate!FSlateApplication::RoutePointerUpEvent() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:4266]
     UE4Editor_Slate!FSlateApplication::ProcessMouseButtonUpEvent() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:4663]
     UE4Editor_Slate!FSlateApplication::OnMouseUp() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:4641]
     UE4Editor_Core!FWindowsApplication::ProcessDeferredMessage() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\core\private\windows\windowsapplication.cpp:1404]
     UE4Editor_Core!FWindowsApplication::DeferMessage() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\core\private\windows\windowsapplication.cpp:1709]
     UE4Editor_Core!FWindowsApplication::ProcessMessage() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\core\private\windows\windowsapplication.cpp:707]
     UE4Editor_Core!FWindowsApplication::AppWndProc() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\core\private\windows\windowsapplication.cpp:629]
     user32
     user32
     UE4Editor_Core!FWindowsPlatformMisc::PumpMessages() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\core\private\windows\windowsplatformmisc.cpp:884]
     UE4Editor!FEngineLoop::Tick() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\launch\private\launchengineloop.cpp:2391]
     UE4Editor!GuardedMain() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\launch\private\launch.cpp:142]
     UE4Editor!GuardedMainWrapper() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\launch\private\windows\launchwindows.cpp:126]
     UE4Editor!WinMain() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\launch\private\windows\launchwindows.cpp:200]
     UE4Editor!__scrt_common_main_seh() [f:\dd\vctools\crt\vcstartup\src\startup\exe_common.inl:264]
     kernel32
     ntdll
Product Version: UE 4.10
Tags:
more ▼

asked Nov 14 '15 at 08:03 PM in Bug Reports

avatar image

BhaaL
146 8 11 20

avatar image Rudy Q ♦♦ STAFF Nov 16 '15 at 06:40 PM

Hello BhaaL,

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

Quick questions:

  1. I noticed that you said the steps given reproduce the issue for you, can you reproduce this issue in a clean project?

  2. If so, could you provide a detailed set of steps like those above so that we can reproduce this issue on our end?

  3. Could you provide screen shots of any blueprints that may be involved with this issue?

avatar image BhaaL Nov 16 '15 at 07:44 PM

Hey Rudy,

Just tried a clean project, and had it not happen at first. But I noticed something was different. Took a look in the other project, and it was indeed different.

Enabling "Show the animation keys in a curve editor" makes the crash reproducible, disabling it makes it go away.

If you need anything else, please tell me.

Hope that helps, ~BhaaL

(comments are locked)
10|2000 characters needed characters left
Viewable by all users

2 answers: sort voted first

I was able to reproduce this issue on our end. I have written up a report (UE-23388) and I have submitted it to the developers for further consideration. I will provide updates with any pertinent information as it becomes available. Thank you for your time and information

Make it a great day

more ▼

answered Nov 16 '15 at 08:53 PM

avatar image

Rudy Q ♦♦ STAFF
47.4k 545 132 524

avatar image Macw0lf Feb 06 '16 at 08:39 PM

Thanks Bhaal for figuring out a workaround.. saved me

avatar image BhaaL Feb 06 '16 at 08:51 PM

It's not much of a workaround if you actually want to use the curve editor - but at least you got something useful out of it :) ~ BhaaL

(comments are locked)
10|2000 characters needed characters left
Viewable by all users

I still use the curver editor just make sure to click back to non-curve before selecting any other animation. Tedious, so hope Unreal fix soon.

more ▼

answered Feb 08 '16 at 05:49 PM

avatar image

Macw0lf
71 2 8 10

(comments are locked)
10|2000 characters needed characters left
Viewable by all users
Your answer
toggle preview:

Up to 5 attachments (including images) can be used with a maximum of 5.2 MB each and 5.2 MB total.

Follow this question

Once you sign in you will be able to subscribe for any updates here

Answers to this question