GarbageCollection - Ensure occurs when force deleting content that is still referenced in memory

Tools - May 15, 2017

While AdHoc testing in //UE4/Release-4.16 CL 3437809 in Binary – I found that deleting the projectBP folder of any Template project causes an ensure. I believe this issue is due a step in the garbag ...

VSCode finds intellisense errors in Project source files: cannot open source file "UBT_COMPILED_PLATFORM/UBT_COMPILED_PLATFORMPlatformCompilerPreSetup.h"

UE - Foundation - Cpp Tools - Jan 28, 2020

VSCode finds intellisense errors in Project source files: cannot open source file "UBT_COMPILED_PLATFORM/UBT_COMPILED_PLATFORMPlatformCompilerPreSetup.h" Similar to [Link Removed], but that was onl ...

Assertion failed: GEditor->GetSelectedActorCount() == 1 in FLevelEditorActionCallbacks::Paste_CanExecute

Tools - May 3, 2017

This is a high frequency crash occurring for our users. It appears to be the same crash reported in [Link Removed], however that was fixed in 4.15.0, and the specific repro steps are verified to no ...

Editor crashed on opening level blueprint

UE - Gameplay - Apr 10, 2017

I've been unable to reproduce this issue. Once only occurrence so far. I did some other things inside the level in between these steps like pressing play and copying, rotating, deleting objects in ...

[CrashReport] UE4Editor_Engine!USimpleConstructionScript::RemoveNodeAndPromoteChildren() [simpleconstructionscript.cpp:785]

UE - Gameplay - Blueprint - Jul 5, 2016

This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Source Context: 770 AllNodes.Remove(Node); 771 772 Node->bIsParen ...

[CrashReport] UE4Editor_Core!FArchive::SerializeCompressed() [archive.cpp:696]

UE - Foundation - Core - Jun 12, 2018

No user comments in crash group 686 // Iterate over all chunks, serialize them into memory and decompress them directly into the destination pointer 687 for( int64 ChunkIndex=0; ...

Combining Layered Blend Per Bone with Cached Pose nodes can break root motion extraction

UE - Anim - Gameplay - Aug 23, 2023

When the input to a Layered Blend Per Bone node is two instances of the same cached pose, we aren't sampling root motion correctly.  In the attached example, the weight on the root bone is 0 and Ble ...

Painted Foliage Instances Randomly Culling in Splitscreen Multiplayer

UE - World Creation - Worldbuilding Tools - Foliage - Mar 15, 2017

Foliage instances are behaving strangely when playing splitscreen multiplayer in a single instance window. The instances will cull in and out of visibility depending on the size of the current playa ...

[CrashReport] UE4Editor_Engine!UModelComponent::CalcBounds() [modelrender.cpp:750]

UE - LD & Modeling - Modeling Tools - BSP - Nov 10, 2017

This is a trending crash coming out of the 4.18 release. Users have not provided any descriptions of their actions when the crash occurred. Source Context 742 FBoxSphereBounds UModelComponent ...

Crash attempting to use a struct containing a deleted struct in a blueprint and compiling

UE - Gameplay - Blueprint Compiler - Sep 21, 2017

REGRESSION: No, occurs in 4.17 (doesn't repro in 4.16 because orphaned pins wasn't a feature) Crash occurs when the user attempts to use a struct containing a deleted struct in a blueprint. ...