When attempting to replace references of one blueprint with another a number of error message windows pop up ([Link Removed]) and the editor will crash.
This is a regression since it was working in 4.7.6 (with the same errors mentioned in [Link Removed]) but crashes in 4.8 Preview 4 from the launcher and Main promoted build CL 2548448.
Note: These references are preventing the object from being deleted:
External referencers of Blueprint /Game/Actor1.Actor1:
BlueprintVariableNodeSpawner /Engine/Transient.BlueprintVariableNodeSpawner_2644 (1)
0) ObjectProperty /Script/BlueprintGraph.BlueprintFieldNodeSpawner:Field
BlueprintVariableNodeSpawner /Engine/Transient.BlueprintVariableNodeSpawner_2645 (1)
0) ObjectProperty /Script/BlueprintGraph.BlueprintFieldNodeSpawner:Field
BlueprintVariableNodeSpawner /Engine/Transient.BlueprintVariableNodeSpawner_2646 (1)
0) ObjectProperty /Script/BlueprintGraph.BlueprintFieldNodeSpawner:Field
BlueprintVariableNodeSpawner /Engine/Transient.BlueprintVariableNodeSpawner_2647 (1)
0) ObjectProperty /Script/BlueprintGraph.BlueprintFieldNodeSpawner:Field
K2Node_DynamicCast /Engine/Transient.PROTO_BP_Blueprint_0:UserConstructionScript.K2Node_DynamicCast_499 (1)
0) ClassProperty /Script/BlueprintGraph.K2Node_DynamicCast:TargetType
K2Node_ClassDynamicCast /Engine/Transient.PROTO_BP_Blueprint_0:UserConstructionScript.K2Node_ClassDynamicCast_495 (1)
0) ClassProperty /Script/BlueprintGraph.K2Node_DynamicCast:TargetType
Shortest reachability from root to Blueprint /Game/Actor1.Actor1:
Blueprint /Game/Actor1.Actor1 [target] (standalone)
Crashreporter:
[Link Removed]
1. Open QA Game
2. Create 2 blueprints based on Actor
3. Add a Static Mesh component to both blueprints
4. Add instance of BlueprintA to the scene
5. Select both BlueprintA and BlueprintB in the content browser
6. Right click and select Asset Actions -> Replace References
7. In the pop up window choose the asset that was not placed in the level (BlueprintB) and click on Consolidate Assets
8. In the Delete Assets window click the Delete button
Result:
Critical Failure window pops up and editor crashes after clicking OK
Expected:
BlueprintA is deleted and replaced with BlueprintB
MachineId:9FA88CA44B7C623122B0039D6C8BA1B0 EpicAccountId:c807849e05a0413d99e379f2802cae9c Unknown exception - code 00000001 (first/second chance not available) "Fatal error: [File:D:\BuildFarm\buildmachine_++depot+UE4-Releases+4.8\Engine\Source\Runtime\CoreUObject\Private\UObject\GarbageCollection.cpp] [Line: 366] Invalid object in GC: 0x00000 KERNELBASE UE4Editor_Core!FOutputDeviceWindowsError::Serialize() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\core\private\windows\windowsplatformoutputdevices.cpp:95] UE4Editor_Core!FOutputDevice::Logf__VA() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\core\private\misc\outputdevice.cpp:144] UE4Editor_Core!FDebug::AssertFailed() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\core\private\misc\outputdevice.cpp:360] UE4Editor_CoreUObject!FArchiveRealtimeGC::ProcessObjectArray() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\coreuobject\private\uobject\garbagecollection.cpp:803] UE4Editor_CoreUObject!TGraphTask<FArchiveRealtimeGC::FGCTask>::ExecuteTask() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\core\public\async\taskgraphinterfaces.h:771] UE4Editor_Core!FTaskThread::ProcessTasks() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\core\private\async\taskgraph.cpp:430] UE4Editor_Core!FTaskThread::ProcessTasksUntilQuit() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\core\private\async\taskgraph.cpp:273] UE4Editor_Core!FTaskThread::Run() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\core\private\async\taskgraph.cpp:564] UE4Editor_Core!FRunnableThreadWin::Run() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\core\private\windows\windowsrunnablethread.cpp:73] UE4Editor_Core!FRunnableThreadWin::GuardedRun() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\core\private\windows\windowsrunnablethread.cpp:26] kernel32 ntdll
Head over to the existing Questions & Answers thread and let us know what's up.
| 0 |
| Component | UE - Gameplay - Blueprint |
|---|---|
| Affects Versions | 4.8 |
| Target Fix | 4.13 |
| Fix Commit | 2974882 |
|---|---|
| Main Commit | 2985633 |
| Created | Jun 1, 2015 |
|---|---|
| Resolved | May 12, 2016 |
| Updated | Apr 27, 2018 |