Crash after SetSequence in LevelSequenceActor UE 5.1.1

International
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1

Hey everyone. Ran into a problem after switching from 4.27 to 5.1.1. I have a list of sequences I want to play. Replacing the sequence in the LevelSequencerActor using the SetSequence() method. Everything is fine as long as there is no sequence in the list of sequencers that has any event track (whether trigger or repeater). When I try to play the next sequencer a crash occurs

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image1585×292 65.8 KB

Callstack:
[2023.03.07-08.26.55:947][811]LogWindows: Windows GetLastError: The operation completed successfully. (0)
[2023.03.07-08.26.56:767][811]LogWindows: Error: === Critical error: ===
[2023.03.07-08.26.56:767][811]LogWindows: Error:
[2023.03.07-08.26.56:767][811]LogWindows: Error: Fatal error: [File:D:\build++UE5\Sync\Engine\Source\Runtime\CoreUObject\Private\UObject\ScriptCore.cpp] [Line: 1449]
[2023.03.07-08.26.56:767][811]LogWindows: Error: Failed to find function Test2 in Test1 (Director BP)_C /Game/UEDPIE_0_Untitled.Untitled:PersistentLevel.LevelSequenceActor_0.AnimationPlayer.Test1_Director_0
[2023.03.07-08.26.56:767][811]LogWindows: Error:
[2023.03.07-08.26.56:767][811]LogWindows: Error:
[2023.03.07-08.26.56:767][811]LogWindows: Error: [Callstack] 0x00007ffe13474fd6 UnrealEditor-CoreUObject.dll!UnknownFunction []
[2023.03.07-08.26.56:767][811]LogWindows: Error: [Callstack] 0x00007ffe134b3342 UnrealEditor-CoreUObject.dll!UnknownFunction []
[2023.03.07-08.26.56:767][811]LogWindows: Error: [Callstack] 0x00007ffe13484d7a UnrealEditor-CoreUObject.dll!UnknownFunction []
[2023.03.07-08.26.56:767][811]LogWindows: Error: [Callstack] 0x00007ffe13484057 UnrealEditor-CoreUObject.dll!UnknownFunction []
[2023.03.07-08.26.56:767][811]LogWindows: Error: [Callstack] 0x00007ffe13206bac UnrealEditor-CoreUObject.dll!UnknownFunction []
[2023.03.07-08.26.56:767][811]LogWindows: Error: [Callstack] 0x00007ffe134832cf UnrealEditor-CoreUObject.dll!UnknownFunction []
[2023.03.07-08.26.56:767][811]LogWindows: Error: [Callstack] 0x00007ffdc7168308 UnrealEditor-MovieSceneTracks.dll!UnknownFunction []
[2023.03.07-08.26.56:767][811]LogWindows: Error: [Callstack] 0x00007ffdc7166f12 UnrealEditor-MovieSceneTracks.dll!UnknownFunction []
[2023.03.07-08.26.56:767][811]LogWindows: Error: [Callstack] 0x00007ffdc7107f52 UnrealEditor-MovieSceneTracks.dll!UnknownFunction []
[2023.03.07-08.26.56:767][811]LogWindows: Error: [Callstack] 0x00007ffde5447fa9 UnrealEditor-MovieScene.dll!UnknownFunction []
[2023.03.07-08.26.56:767][811]LogWindows: Error: [Callstack] 0x00007ffde5462aee UnrealEditor-MovieScene.dll!UnknownFunction []
[2023.03.07-08.26.56:767][811]LogWindows: Error: [Callstack] 0x00007ffde545fbf0 UnrealEditor-MovieScene.dll!UnknownFunction []
[2023.03.07-08.26.56:767][811]LogWindows: Error: [Callstack] 0x00007ffde545ffcf UnrealEditor-MovieScene.dll!UnknownFunction []
[2023.03.07-08.26.56:767][811]LogWindows: Error: [Callstack] 0x00007ffde553f3ee UnrealEditor-MovieScene.dll!UnknownFunction []
[2023.03.07-08.26.56:767][811]LogWindows: Error: [Callstack] 0x00007ffe13a3ced5 UnrealEditor-LevelSequence.dll!UnknownFunction []
[2023.03.07-08.26.56:767][811]LogWindows: Error: [Callstack] 0x00007ffde5510e13 UnrealEditor-MovieScene.dll!UnknownFunction []
[2023.03.07-08.26.56:767][811]LogWindows: Error: [Callstack] 0x00007ffe13206bac UnrealEditor-CoreUObject.dll!UnknownFunction []
[2023.03.07-08.26.56:767][811]LogWindows: Error: [Callstack] 0x00007ffe1346d624 UnrealEditor-CoreUObject.dll!UnknownFunction []
[2023.03.07-08.26.56:767][811]LogWindows: Error: [Callstack] 0x00007ffe13481bc3 UnrealEditor-CoreUObject.dll!UnknownFunction []
[2023.03.07-08.26.56:767][811]LogWindows: Error: [Callstack] 0x00007ffe13484d7a UnrealEditor-CoreUObject.dll!UnknownFunction []
[2023.03.07-08.26.56:767][811]LogWindows: Error: [Callstack] 0x00007ffe13484057 UnrealEditor-CoreUObject.dll!UnknownFunction []
[2023.03.07-08.26.56:767][811]LogWindows: Error: [Callstack] 0x00007ffe13206bac UnrealEditor-CoreUObject.dll!UnknownFunction []
[2023.03.07-08.26.56:767][811]LogWindows: Error: [Callstack] 0x00007ffe134832cf UnrealEditor-CoreUObject.dll!UnknownFunction []
[2023.03.07-08.26.56:767][811]LogWindows: Error: [Callstack] 0x00007ffdc119d712 UnrealEditor-Engine.dll!UnknownFunction []
[2023.03.07-08.26.56:767][811]LogWindows: Error: [Callstack] 0x00007ffdc1f06a80 UnrealEditor-Engine.dll!UnknownFunction []
[2023.03.07-08.26.56:767][811]LogWindows: Error: [Callstack] 0x00007ffdc1ee819c UnrealEditor-Engine.dll!UnknownFunction []
[2023.03.07-08.26.56:767][811]LogWindows: Error: [Callstack] 0x00007ffdc1f61920 UnrealEditor-Engine.dll!UnknownFunction []
[2023.03.07-08.26.56:767][811]LogWindows: Error: [Callstack] 0x00007ffdd491bf4b UnrealEditor-UnrealEd.dll!UnknownFunction []
[2023.03.07-08.26.56:767][811]LogWindows: Error: [Callstack] 0x00007ffdd539e106 UnrealEditor-UnrealEd.dll!UnknownFunction []
[2023.03.07-08.26.56:767][811]LogWindows: Error: [Callstack] 0x00007ff60f51852c UnrealEditor.exe!UnknownFunction []
[2023.03.07-08.26.56:767][811]LogWindows: Error: [Callstack] 0x00007ff60f53287d UnrealEditor.exe!UnknownFunction []
[2023.03.07-08.26.56:767][811]LogWindows: Error: [Callstack] 0x00007ff60f53296a UnrealEditor.exe!UnknownFunction []
[2023.03.07-08.26.56:767][811]LogWindows: Error: [Callstack] 0x00007ff60f535680 UnrealEditor.exe!UnknownFunction []
[2023.03.07-08.26.56:767][811]LogWindows: Error: [Callstack] 0x00007ff60f5471b4 UnrealEditor.exe!UnknownFunction []
[2023.03.07-08.26.56:767][811]LogWindows: Error: [Callstack] 0x00007ff60f54a516 UnrealEditor.exe!UnknownFunction []
[2023.03.07-08.26.56:767][811]LogWindows: Error: [Callstack] 0x00007ffe48e17034 KERNEL32.DLL!UnknownFunction []
[2023.03.07-08.26.56:767][811]LogWindows: Error: [Callstack] 0x00007ffe4a6c2651 ntdll.dll!UnknownFunction []
[2023.03.07-08.26.56:767][811]LogWindows: Error:

2

I met same problem, anyone fix it or found a workaround? It seen the level sequence which is set in SetSequence try to find a director bp function from previous played level sequence, and crashed

3

Hello, I talked with Epics. They made changes to version 5.2, maybe a fix got into version 5.1. As an alternative, Epics suggested spawning a new sequence actor for each sequencer