Actor variable type has distractingly large tooltip comment

UE - Gameplay - Blueprint Editor - May 4, 2021

Actor.h has a large comment that describes the entire lifecycle of Actors, which was written for the API website (https://docs.unrealengine.com/en-US/API/Runtime/Engine/GameFramework/AActor/index.ht ...

Editor Crashes when adding the Start Matinee Camera Shake node to a Blueprint and playing in editor

UE - Anim - Sequencer - Sep 9, 2021

When adding the Start Matinee Camera Shake node to a blueprint and then playing the project, the editor crashes. When regression testing in 4.26 however, I noticed that compiling the Third Person Ch ...

[MRQ] Deleting all jobs after rendering queue with executor causes an assertion to fail.

UE - Anim - Sequencer - MRQ - Apr 18, 2022

Deleting all jobs after rendering queue with executor causes an assertion to fail. Repro Rate: 3/3 Tested this in //UE4/Release-4.27 @ CL#18319896 by utilizing a For Each Loop and Delete Job node ...

LLM PlatformProcessMemory calculation ignores VRAM, and its calculation of how much memory is used by the process is too low

UE - Foundation - Sep 29, 2023

FLowLevelMemTracker::TickInternal() the ELLMTag::Total (and therefore ELLMTag::Untracked) memory amounts are calculated based only on the result of FPlatformMemory::GetStats(), which on the Windows ...

Restricted Gameplay Tags cannot be added

UE - Gameplay - Mar 15, 2024

The Gameplay Tags settings have the option to set up restricted tags as described in the documentation. Prior to 5.3, the UI correctly supported creating new restricted tags as described in the old ...

[CrashReport] UE4Editor_Core!TArray<wchar_t,FDefaultAllocator>::operator=() [array.h:396]

Tools - Nov 21, 2017

This is a common crash coming out of the 4.18 release. Users have not provided any descriptions of their actions when the crash occurred. The callstack seems to be the same as [Link Removed], which ...

SetNiagaraStaticMeshComponent in UNiagaraFunctionLibrary does not add NiagaraVariable to InstanceParameterOverrides

UE - Niagara - Jan 13, 2023

The result of the Set Niagara Static Mesh Component (OverrideSystemUserVariableStaticMeshComponent) function provided by the UNiagaraFunctionLibrary is different from the operation result on the det ...

TMap does not rehash when the property change if the key is struct

UE - Editor - Workflow Systems - Feb 17, 2023

If TMap's Key is a unique Struct, TMap's rehash will not run even if elements are added or changed in DetailPanel such as DataAsset. So TMaps's Find etc. will fail This issue is very similar to [Li ...

Camera View Transformations in Editor and Sequencer Cannot Be Undo (Ctrl+Z)

UE - Anim - Sequencer - May 26, 2025

Camera View Transformations in Editor and Sequencer Cannot Be Undo (Ctrl+Z) ​​Description​​: When switching the viewport to a specific camera actor, any manual movement/rotation of the camera (via ...

Split Struct pins cause errors when a project is converted to 4.17

UE - Gameplay - Aug 11, 2017

Split Struct pins cause errors when a project is converted to 4.17. You are still unable to split struct pins even if a new variable is created for the struct. Only adding a new variable to the st ...