[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; ...

Editor crashes when attempting to press tab while editing transform values in structs

Tools - Dec 23, 2014

Editor crashes if a user presses tab while editing transform values in a blueprint struct. Note: This only occurs while editing transform variables, no other var causes this crash. Logs and Dump f ...

[CrashReport] UE4Editor_CoreUObject!IncrementalPurgeGarbage() [garbagecollection.cpp:1042]

UE - Editor - UI Systems - Localization - May 31, 2016

This JIRA is being entered as a result of being one of the top crashes in 4.12 Preview 5 In the 4.12.0 release, we currently have a user on the Answerhub who experiences this crash: https://answers ...

Recast rcScopedDelete<T>::resizeGrow copies too many elements

UE - Runtime - Character - Nov 5, 2024

Context The Recast module has a helper struct rcScopedDelete for allocating, resizing and automatically freeing the allocated memory when the struct goes out of scope. Its allocation functions can ...

Updating C++ projects with Marketplace plugins in 4.25.2 fails to build project

UE - Foundation - Cpp Tools - Plugin System - Jul 24, 2020

Projects created in previous engine versions fail to build in 4.25.2Running D:/Epic Games/UE_4.25/Engine/Binaries/DotNET/UnrealBuildTool.exe Development Win64 -Project="D:/Unreal Projects/MyProject4 ...

Live Link Face does NOT launch Take Recorder automatically if press red Record button

UE - Virtual Production - IO - LiveLink - Jul 31, 2020

As you can see below, users expect to launch Take Recorder from the Live Link Face app, but it doesn't actually work.When you're ready to record a performance, tap the red Record button in the Liv ...

Incremental Cooks: Add dependencies on files loaded during Load/Save of the package

UE - Core - Data Pipeline - Cooker - Oct 19, 2022

Iterative and Incremental cooking are supposed to recook packages when their "inputs" change. Most of the time inputs are the package file itself and the other package files on which it has dependen ...

Mutable custom versioning issue from 5.5->5.6

UE - Anim - Mutable - Sep 19, 2025

In 5.6, a handful of new entries in `FCustomizableObjectCustomVersion` were added, including `SetDisplayNamePropertyAsPinNameOfTableNodes`. Looking back at the history, `SetDisplayNamePropertyAsPinN ...

Asset players in LinkedAnimInstances are ticked twice when a PostProcessAnimInstance is present

OLD - Anim - Apr 14, 2020

Reported here: https://udn.unrealengine.com/questions/569091/animation-playrate-in-linkedanimgraph.html I tested with a downloaded copy of 4.24. It looks like this would also happen in 4.25 though. ...

Material functions should be able to output the same data as it can accept as inputs

UE - Rendering - Architecture - Materials - Sep 30, 2024

Material Functions cannot output Texture Objects or Booleans. This seems to be because the Material Editor believes that the outputs are Floats, and forbid connections to inputs that take Textures ...